diff --git a/config b/config
index 1670ac37..273b3934 100644
--- a/config
+++ b/config
@@ -37,6 +37,7 @@ class Config:
 
 	def reset(self, TEST = False, ALL = False):
 		self.AUDIO     = ALL
+		self.CALLBACK  = ALL
 		self.DATABASE  = ALL
 		self.DECK      = ALL
 		self.FILE      = ALL
diff --git a/design.txt b/design.txt
index 9c4adecf..69733ed6 100644
--- a/design.txt
+++ b/design.txt
@@ -33,6 +33,7 @@ Files:
 		ocarina6.glade
 	ocarina/include/
 		audio.h
+		callback.h
 		database.h
 		database.hpp
 		deck.h
@@ -48,6 +49,7 @@ Files:
 		version.h
 	ocarina/lib/
 		audio.cpp
+		callback.cpp
 		database.cpp
 		deck.cpp
 		file.cpp
@@ -104,6 +106,26 @@ API:
 
 
 
+Callbacks: (lib/callback.cpp)
+	Callbacks are used to notify a unit test or the gui that something in
+	the backend has changed.  The callbacks structure should be initialized
+	with no-op default values and filled in by the user through the
+	get_callbacks() function.
+
+- Callback functions:
+	struct Callbacks {
+		void (*on_library_add)(unsigned int, library :: Library *);
+		void (*on_library_update)(unsigned int, library :: Library *);
+	};
+
+	static struct Callbacks callbacks;
+
+- API:
+	struct Callbacks *get_callbacks();
+		Return the Callbacks structure;
+
+
+
 On-disk files: (lib/file.cpp)
 	Data will be stored in the user's home directory according to the
 	XDG / freedesktop.org specification.  This means storing data in
@@ -690,6 +712,8 @@ Library: (lib/library.cpp)
 		If dir is not a directory:
 			throw -EINVAL
 
+		Trigger the on_library_add() callback on success.
+
 	void library :: del_path(unsigned int lib_id);
 		Invalidate a library_db row and all tracks owned by that path
 		if lib_id is not valid, throw -EEXIST.
@@ -698,8 +722,11 @@ Library: (lib/library.cpp)
 		Update the given library_db row.
 		If lib_id is not valid, throw -EEXIST.
 
+		Trigger the on_library_update() callback.
+
 	void library :: update_all();
 		Update all library paths.
+		Trigger the on_library_update() callback for each path.
 
 	struct Song library :: lookup(track_id);
 		Fill out a Song structure for the provided track_id.
@@ -1085,6 +1112,8 @@ Future work:
 		to update the library information and the on-disk file.
 
 	- Album art: (6.1)
+		(easy) Start with album art fetching script
+		(hard) Build in to Ocarina
 
 	- Playlist custom sorting: (6.1)
 		Click column headers to choos sort order
@@ -1098,6 +1127,7 @@ Future work:
 		keep it in each individual section instead.
 		XML?
 		Code formatting?
+		Checkbox for when features are done? (reference commit)
 
 	- Copy a song group to a different directory: (6.x)
 		This can be useful for keeping an external device (like an
@@ -1118,3 +1148,21 @@ Future work:
 		- Some way to enable / disable tests during development
 		- Run tests based on dependencies
 		- Fix tests that will only work on my computer
+		- Double check that all inputs and outputs are tested
+		- Simple testing library?
+
+	- Preferences:
+		- Set default sort
+		- Save window size
+		- Set album art size
+
+	- Rip out Ocarina 5.x importing and legacy file support
+
+	- AirPlay / remote audio support
+
+	- Media keys
+
+	- Replaygain support
+		External script to calculate values?
+		Calculate value after first playback?
+		Store in library :: Track structure
diff --git a/design/callback.txt b/design/callback.txt
new file mode 100644
index 00000000..321b6ae5
--- /dev/null
+++ b/design/callback.txt
@@ -0,0 +1,26 @@
+== Files ==
+	ocarina/include/
+		callback.h
+	ocarina/lib/
+		callback.cpp
+
+== Depends ==
+version print
+
+Callbacks: (lib/callback.cpp)
+	Callbacks are used to notify a unit test or the gui that something in
+	the backend has changed.  The callbacks structure should be initialized
+	with no-op default values and filled in by the user through the
+	get_callbacks() function.
+
+- Callback functions:
+	struct Callbacks {
+		void (*on_library_add)(unsigned int, library :: Library *);
+		void (*on_library_update)(unsigned int, library :: Library *);
+	};
+
+	static struct Callbacks callbacks;
+
+- API:
+	struct Callbacks *get_callbacks();
+		Return the Callbacks structure;
diff --git a/design/footer.txt b/design/footer.txt
index 23df2313..6c0e1b51 100644
--- a/design/footer.txt
+++ b/design/footer.txt
@@ -46,6 +46,8 @@ Future work:
 		to update the library information and the on-disk file.
 
 	- Album art: (6.1)
+		(easy) Start with album art fetching script
+		(hard) Build in to Ocarina
 
 	- Playlist custom sorting: (6.1)
 		Click column headers to choos sort order
@@ -59,6 +61,7 @@ Future work:
 		keep it in each individual section instead.
 		XML?
 		Code formatting?
+		Checkbox for when features are done? (reference commit)
 
 	- Copy a song group to a different directory: (6.x)
 		This can be useful for keeping an external device (like an
@@ -79,3 +82,21 @@ Future work:
 		- Some way to enable / disable tests during development
 		- Run tests based on dependencies
 		- Fix tests that will only work on my computer
+		- Double check that all inputs and outputs are tested
+		- Simple testing library?
+
+	- Preferences:
+		- Set default sort
+		- Save window size
+		- Set album art size
+
+	- Rip out Ocarina 5.x importing and legacy file support
+
+	- AirPlay / remote audio support
+
+	- Media keys
+
+	- Replaygain support
+		External script to calculate values?
+		Calculate value after first playback?
+		Store in library :: Track structure
diff --git a/design/library.txt b/design/library.txt
index 52207e74..529de853 100644
--- a/design/library.txt
+++ b/design/library.txt
@@ -163,6 +163,8 @@ Library: (lib/library.cpp)
 		If dir is not a directory:
 			throw -EINVAL
 
+		Trigger the on_library_add() callback on success.
+
 	void library :: del_path(unsigned int lib_id);
 		Invalidate a library_db row and all tracks owned by that path
 		if lib_id is not valid, throw -EEXIST.
@@ -171,8 +173,11 @@ Library: (lib/library.cpp)
 		Update the given library_db row.
 		If lib_id is not valid, throw -EEXIST.
 
+		Trigger the on_library_update() callback.
+
 	void library :: update_all();
 		Update all library paths.
+		Trigger the on_library_update() callback for each path.
 
 	struct Song library :: lookup(track_id);
 		Fill out a Song structure for the provided track_id.
diff --git a/include/callback.h b/include/callback.h
new file mode 100644
index 00000000..e9edc864
--- /dev/null
+++ b/include/callback.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2014 (c) Anna Schumaker.
+ */
+#ifndef OCARINA_CALLBACK_H
+#define OCARINA_CALLBACK_H
+
+#include <library.h>
+
+
+struct Callbacks {
+	void (*on_library_add)(unsigned int, library :: Library *);
+	void (*on_library_update)(unsigned int, library :: Library *);
+};
+
+
+struct Callbacks *get_callbacks();
+
+
+#endif /* OCARINA_CALLBACK_H */
diff --git a/lib/Sconscript b/lib/Sconscript
index f253e9c3..28b4f2d5 100644
--- a/lib/Sconscript
+++ b/lib/Sconscript
@@ -16,12 +16,13 @@ modules = {
 ###########################
 
 	"AUDIO"     : Module("audio.cpp", package = "gstreamer-1.0", depends = [ "DECK" ]),
+	"CALLBACK"  : Module("callback.cpp"),
 	"DATABASE"  : Module("database.cpp", depends = [ "FILE" ]),
 	"DECK"      : Module("deck.cpp", depends = [ "PLAYQUEUE" ]),
 	"FILE"      : Module("file.cpp", package = "glib-2.0"),
 	"FILTER"    : Module("filter.cpp", depends = [ "DATABASE" ]),
 	"IDLE"      : Module("idle.cpp"),
-	"LIBRARY"   : Module("library.cpp", package = "taglib", depends = [ "DATABASE", "FILTER", "IDLE" ]),
+	"LIBRARY"   : Module("library.cpp", package = "taglib", depends = [ "CALLBACK",  "DATABASE", "FILTER", "IDLE" ]),
 	"PLAYLIST"  : Module("playlist.cpp", depends = [ "DATABASE" ]),
 	"PLAYQUEUE" : Module("playqueue.cpp", depends = [ "LIBRARY" ]),
 
diff --git a/lib/callback.cpp b/lib/callback.cpp
new file mode 100644
index 00000000..4e0f7047
--- /dev/null
+++ b/lib/callback.cpp
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2014 (c) Anna Schumaker.
+ */
+#include <callback.h>
+
+
+static void no_op(unsigned int id, library :: Library *path) {}
+
+
+static struct Callbacks callbacks = {
+	.on_library_add		= no_op,
+	.on_library_update	= no_op,
+};
+
+
+struct Callbacks *get_callbacks()
+{
+	return &callbacks;
+}
diff --git a/lib/library.cpp b/lib/library.cpp
index 4420abeb..36c8e8e4 100644
--- a/lib/library.cpp
+++ b/lib/library.cpp
@@ -1,6 +1,7 @@
 /*
  * Copyright 2013 (c) Anna Schumaker.
  */
+#include <callback.h>
 #include <filter.h>
 #include <idle.h>
 #include <library.h>
@@ -28,7 +29,6 @@ struct ImportData {
 };
 
 
-
 /*
  * library :: Artist:  Artist tag information
  */
@@ -298,10 +298,11 @@ static void read_tags(unsigned int lib_id, const std :: string &path)
 	library_db[lib_id].size++;
 }
 
-static void process_path(unsigned int lib_id, const std :: string &dir,
+static bool process_path(unsigned int lib_id, const std :: string &dir,
 			 const std :: string &name)
 {
 	struct scan_info scan;
+	bool changed = false;
 	std :: string path = dir + "/" + name;
 
 	if (g_file_test(path.c_str(), G_FILE_TEST_IS_DIR) == true) {
@@ -309,9 +310,13 @@ static void process_path(unsigned int lib_id, const std :: string &dir,
 		scan.path = path;
 		idle :: schedule (do_scan_path, scan);
 	} else {
-		if (track_db.has_key(path) == false)
+		if (track_db.has_key(path) == false) {
 			read_tags(lib_id, path);
+			changed = true;
+		}
 	}
+
+	return changed;
 }
 
 static void save_all_dbs()
@@ -326,6 +331,7 @@ static void do_scan_path(struct scan_info &scan)
 {
 	GDir *dir;
 	const char *name;
+	bool changed = false;
 
 	dir = g_dir_open(scan.path.c_str(), 0, NULL);
 	if (dir == NULL)
@@ -333,15 +339,22 @@ static void do_scan_path(struct scan_info &scan)
 
 	name = g_dir_read_name(dir);
 	while (name != NULL) {
-		process_path(scan.lib_id, scan.path, name);
-		save_all_dbs();
+		if (process_path(scan.lib_id, scan.path, name))
+			changed = true;
 		name = g_dir_read_name(dir);
 	}
+
+	if (changed == true) {
+		save_all_dbs();
+		get_callbacks()->on_library_update(scan.lib_id,
+						   &library_db[scan.lib_id]);
+	}
 }
 
 static void do_validate_library(unsigned int &lib_id)
 {
 	std :: string path;
+	bool changed = false;
 
 	if (track_db.size() == 0)
 		return;
@@ -355,8 +368,12 @@ static void do_validate_library(unsigned int &lib_id)
 			dprint("Removing file: %s\n", path.c_str());
 			track_db.remove(i);
 			library_db[lib_id].size--;
+			changed = true;
 		}
 	}
+
+	if (changed == true)
+		get_callbacks()->on_library_update(lib_id, &library_db[lib_id]);
 }
 
 static void do_update_library(unsigned int lib_id)
@@ -417,12 +434,14 @@ static void do_import_library(std::string &s)
 	}
 	print("Adding path: %s\n", path.c_str());
 	id = library_db.insert(library :: Library(path, enabled));
+	get_callbacks()->on_library_add(id, &library_db[id]);
 	library_db.save();
 
 	f.getline(); /* Get rest of line */
 	for (unsigned int i = 0; i < size; i++)
 		do_import_track(f, id);
 	save_all_dbs();
+	get_callbacks()->on_library_update(id, &library_db[id]);
 
 	library :: update_path(id);
 }
@@ -435,7 +454,10 @@ static void do_import_library(std::string &s)
 
 void library :: init()
 {
+	unsigned int i;
 	library_db.load();
+	for (i = library_db.first(); i < library_db.num_rows(); i = library_db.next(i))
+		get_callbacks()->on_library_add(i, &library_db[i]);
 }
 
 void library :: add_path(const std::string &dir)
@@ -446,6 +468,8 @@ void library :: add_path(const std::string &dir)
 
 	id = library_db.insert(library :: Library(dir, true));
 	library_db.save();
+
+	get_callbacks()->on_library_add(id, &library_db[id]);
 	update_path(id);
 }
 
diff --git a/tests/library/library.cpp b/tests/library/library.cpp
index 7af1216b..f41f015a 100644
--- a/tests/library/library.cpp
+++ b/tests/library/library.cpp
@@ -1,6 +1,7 @@
 /*
  * Copyright 2013 (c) Anna Schumaker.
  */
+#include <callback.h>
 #include <idle.h>
 #include <library.h>
 #include <print.h>
@@ -28,6 +29,17 @@ bool check_add_dir(const std::string &dir)
 	}
 }
 
+void library_added(unsigned int id, library :: Library *path)
+{
+	print("Added library %u: %s\n", id, path->root_path.c_str());
+}
+
+void library_updated(unsigned int id, library :: Library *path)
+{
+	print("Updated library %u: %s (size: %u)\n",
+		id, path->root_path.c_str(), path->size);
+}
+
 void test_add_dir(const std::string &test, const std::string &dir, bool expected)
 {
 	print("Test %s: ", test.c_str());
@@ -252,10 +264,16 @@ void test_7()
 	library :: print_db(library :: DB_LIBRARY);
 }
 
+
 int main(int argc, char **argv)
 {
+	struct Callbacks *cb;
 	gen_library();
 
+	cb = get_callbacks();
+	cb->on_library_add	= library_added;
+	cb->on_library_update	= library_updated;
+
 	test_0();
 	test_1();
 	test_2();
diff --git a/tests/library/library.good b/tests/library/library.good
index 33700ec3..e2a8952d 100644
--- a/tests/library/library.good
+++ b/tests/library/library.good
@@ -11,7 +11,23 @@ Test 0b: PASSED
 Allocated rows: 0
 Valid rows: 0
 
-Test 1a: PASSED
+Test 1a: Added library 0: /tmp/library/0
+PASSED
+Updated library 0: /tmp/library/0 (size: 10)
+Updated library 0: /tmp/library/0 (size: 20)
+Updated library 0: /tmp/library/0 (size: 30)
+Updated library 0: /tmp/library/0 (size: 40)
+Updated library 0: /tmp/library/0 (size: 50)
+Updated library 0: /tmp/library/0 (size: 60)
+Updated library 0: /tmp/library/0 (size: 70)
+Updated library 0: /tmp/library/0 (size: 80)
+Updated library 0: /tmp/library/0 (size: 90)
+Updated library 0: /tmp/library/0 (size: 100)
+Updated library 0: /tmp/library/0 (size: 110)
+Updated library 0: /tmp/library/0 (size: 120)
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 150
@@ -19,16 +35,64 @@ Test 1b
 Allocated rows: 1
 Valid rows: 0
 
-Test 2a: PASSED
+Test 2a: Added library 0: /tmp/library/0
+PASSED
+Updated library 0: /tmp/library/0 (size: 10)
+Updated library 0: /tmp/library/0 (size: 20)
+Updated library 0: /tmp/library/0 (size: 30)
+Updated library 0: /tmp/library/0 (size: 40)
+Updated library 0: /tmp/library/0 (size: 50)
+Updated library 0: /tmp/library/0 (size: 60)
+Updated library 0: /tmp/library/0 (size: 70)
+Updated library 0: /tmp/library/0 (size: 80)
+Updated library 0: /tmp/library/0 (size: 90)
+Updated library 0: /tmp/library/0 (size: 100)
+Updated library 0: /tmp/library/0 (size: 110)
+Updated library 0: /tmp/library/0 (size: 120)
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 150
-Test 2b: PASSED
+Test 2b: Added library 1: /tmp/library/1
+PASSED
+Updated library 1: /tmp/library/1 (size: 10)
+Updated library 1: /tmp/library/1 (size: 20)
+Updated library 1: /tmp/library/1 (size: 30)
+Updated library 1: /tmp/library/1 (size: 40)
+Updated library 1: /tmp/library/1 (size: 50)
+Updated library 1: /tmp/library/1 (size: 60)
+Updated library 1: /tmp/library/1 (size: 70)
+Updated library 1: /tmp/library/1 (size: 80)
+Updated library 1: /tmp/library/1 (size: 90)
+Updated library 1: /tmp/library/1 (size: 100)
+Updated library 1: /tmp/library/1 (size: 110)
+Updated library 1: /tmp/library/1 (size: 120)
+Updated library 1: /tmp/library/1 (size: 130)
+Updated library 1: /tmp/library/1 (size: 140)
+Updated library 1: /tmp/library/1 (size: 150)
 Allocated rows: 2
 Valid rows: 2
 db[0] = /tmp/library/0 (enabled), size = 150
 db[1] = /tmp/library/1 (enabled), size = 150
-Test 2c: PASSED
+Test 2c: Added library 2: /tmp/library/2
+PASSED
+Updated library 2: /tmp/library/2 (size: 10)
+Updated library 2: /tmp/library/2 (size: 20)
+Updated library 2: /tmp/library/2 (size: 30)
+Updated library 2: /tmp/library/2 (size: 40)
+Updated library 2: /tmp/library/2 (size: 50)
+Updated library 2: /tmp/library/2 (size: 60)
+Updated library 2: /tmp/library/2 (size: 70)
+Updated library 2: /tmp/library/2 (size: 80)
+Updated library 2: /tmp/library/2 (size: 90)
+Updated library 2: /tmp/library/2 (size: 100)
+Updated library 2: /tmp/library/2 (size: 110)
+Updated library 2: /tmp/library/2 (size: 120)
+Updated library 2: /tmp/library/2 (size: 130)
+Updated library 2: /tmp/library/2 (size: 140)
+Updated library 2: /tmp/library/2 (size: 150)
 Allocated rows: 3
 Valid rows: 3
 db[0] = /tmp/library/0 (enabled), size = 150
@@ -47,16 +111,64 @@ Test 2f
 Allocated rows: 3
 Valid rows: 0
 
-Test 3a: PASSED
+Test 3a: Added library 0: /tmp/library/0
+PASSED
+Updated library 0: /tmp/library/0 (size: 10)
+Updated library 0: /tmp/library/0 (size: 20)
+Updated library 0: /tmp/library/0 (size: 30)
+Updated library 0: /tmp/library/0 (size: 40)
+Updated library 0: /tmp/library/0 (size: 50)
+Updated library 0: /tmp/library/0 (size: 60)
+Updated library 0: /tmp/library/0 (size: 70)
+Updated library 0: /tmp/library/0 (size: 80)
+Updated library 0: /tmp/library/0 (size: 90)
+Updated library 0: /tmp/library/0 (size: 100)
+Updated library 0: /tmp/library/0 (size: 110)
+Updated library 0: /tmp/library/0 (size: 120)
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 150
-Test 3b: PASSED
+Test 3b: Added library 1: /tmp/library/1
+PASSED
+Updated library 1: /tmp/library/1 (size: 10)
+Updated library 1: /tmp/library/1 (size: 20)
+Updated library 1: /tmp/library/1 (size: 30)
+Updated library 1: /tmp/library/1 (size: 40)
+Updated library 1: /tmp/library/1 (size: 50)
+Updated library 1: /tmp/library/1 (size: 60)
+Updated library 1: /tmp/library/1 (size: 70)
+Updated library 1: /tmp/library/1 (size: 80)
+Updated library 1: /tmp/library/1 (size: 90)
+Updated library 1: /tmp/library/1 (size: 100)
+Updated library 1: /tmp/library/1 (size: 110)
+Updated library 1: /tmp/library/1 (size: 120)
+Updated library 1: /tmp/library/1 (size: 130)
+Updated library 1: /tmp/library/1 (size: 140)
+Updated library 1: /tmp/library/1 (size: 150)
 Allocated rows: 2
 Valid rows: 2
 db[0] = /tmp/library/0 (enabled), size = 150
 db[1] = /tmp/library/1 (enabled), size = 150
-Test 3c: PASSED
+Test 3c: Added library 2: /tmp/library/2
+PASSED
+Updated library 2: /tmp/library/2 (size: 10)
+Updated library 2: /tmp/library/2 (size: 20)
+Updated library 2: /tmp/library/2 (size: 30)
+Updated library 2: /tmp/library/2 (size: 40)
+Updated library 2: /tmp/library/2 (size: 50)
+Updated library 2: /tmp/library/2 (size: 60)
+Updated library 2: /tmp/library/2 (size: 70)
+Updated library 2: /tmp/library/2 (size: 80)
+Updated library 2: /tmp/library/2 (size: 90)
+Updated library 2: /tmp/library/2 (size: 100)
+Updated library 2: /tmp/library/2 (size: 110)
+Updated library 2: /tmp/library/2 (size: 120)
+Updated library 2: /tmp/library/2 (size: 130)
+Updated library 2: /tmp/library/2 (size: 140)
+Updated library 2: /tmp/library/2 (size: 150)
 Allocated rows: 3
 Valid rows: 3
 db[0] = /tmp/library/0 (enabled), size = 150
@@ -66,13 +178,32 @@ Test 3d
 Allocated rows: 0
 Valid rows: 0
 Test 3e
+Added library 0:  /tmp/library/0
+Added library 1:  /tmp/library/1
+Added library 2:  /tmp/library/2
 Allocated rows: 3
 Valid rows: 3
 db[0] =  /tmp/library/0 (enabled), size = 0
 db[1] =  /tmp/library/1 (enabled), size = 0
 db[2] =  /tmp/library/2 (enabled), size = 0
 
-Test 4a: PASSED
+Test 4a: Added library 0: /tmp/library/0
+PASSED
+Updated library 0: /tmp/library/0 (size: 10)
+Updated library 0: /tmp/library/0 (size: 20)
+Updated library 0: /tmp/library/0 (size: 30)
+Updated library 0: /tmp/library/0 (size: 40)
+Updated library 0: /tmp/library/0 (size: 50)
+Updated library 0: /tmp/library/0 (size: 60)
+Updated library 0: /tmp/library/0 (size: 70)
+Updated library 0: /tmp/library/0 (size: 80)
+Updated library 0: /tmp/library/0 (size: 90)
+Updated library 0: /tmp/library/0 (size: 100)
+Updated library 0: /tmp/library/0 (size: 110)
+Updated library 0: /tmp/library/0 (size: 120)
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 150
@@ -712,7 +843,23 @@ db[149] = 1. Track 1 by Artist 0 from Album 0 (2011)
 	Artist 0/Album 0/1 - Track 1.ogg
 
 Test 5a (track_id == 0): PASSED
-Test 5b: PASSED
+Test 5b: Added library 0: /tmp/library/0
+PASSED
+Updated library 0: /tmp/library/0 (size: 10)
+Updated library 0: /tmp/library/0 (size: 20)
+Updated library 0: /tmp/library/0 (size: 30)
+Updated library 0: /tmp/library/0 (size: 40)
+Updated library 0: /tmp/library/0 (size: 50)
+Updated library 0: /tmp/library/0 (size: 60)
+Updated library 0: /tmp/library/0 (size: 70)
+Updated library 0: /tmp/library/0 (size: 80)
+Updated library 0: /tmp/library/0 (size: 90)
+Updated library 0: /tmp/library/0 (size: 100)
+Updated library 0: /tmp/library/0 (size: 110)
+Updated library 0: /tmp/library/0 (size: 120)
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 150
@@ -727,7 +874,23 @@ Test 5f (lib_id == 0): PASSED
 /tmp/library/0 (enabled) size = 150
 Test 5g (lib_id == 1): PASSED
 
-Test 6a: PASSED
+Test 6a: Added library 0: /tmp/library/0
+PASSED
+Updated library 0: /tmp/library/0 (size: 10)
+Updated library 0: /tmp/library/0 (size: 20)
+Updated library 0: /tmp/library/0 (size: 30)
+Updated library 0: /tmp/library/0 (size: 40)
+Updated library 0: /tmp/library/0 (size: 50)
+Updated library 0: /tmp/library/0 (size: 60)
+Updated library 0: /tmp/library/0 (size: 70)
+Updated library 0: /tmp/library/0 (size: 80)
+Updated library 0: /tmp/library/0 (size: 90)
+Updated library 0: /tmp/library/0 (size: 100)
+Updated library 0: /tmp/library/0 (size: 110)
+Updated library 0: /tmp/library/0 (size: 120)
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 150
@@ -1367,6 +1530,7 @@ Removing file: /tmp/library/0/Artist 2/Album 0/4 - Track 4.ogg
 Removing file: /tmp/library/0/Artist 2/Album 0/3 - Track 3.ogg
 Removing file: /tmp/library/0/Artist 2/Album 0/2 - Track 2.ogg
 Removing file: /tmp/library/0/Artist 2/Album 0/1 - Track 1.ogg
+Updated library 0: /tmp/library/0 (size: 120)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/0 (enabled), size = 120
@@ -1860,6 +2024,9 @@ Generating library: 2
 Generating library: 3
 Generating library: 4
 
+Updated library 0: /tmp/library/0 (size: 130)
+Updated library 0: /tmp/library/0 (size: 140)
+Updated library 0: /tmp/library/0 (size: 150)
 Allocated rows: 180
 Valid rows: 150
 db[30] = 10. Track 10 by Artist 4 from Album 2 (2013)
@@ -2463,7 +2630,23 @@ db[179] = 1. Track 1 by Artist 2 from Album 0 (2011)
 	Play count: 0, last played 0/0/0
 	Artist 2/Album 0/1 - Track 1.ogg
 
-Test 7a: PASSED
+Test 7a: Added library 0: /tmp/library/2
+PASSED
+Updated library 0: /tmp/library/2 (size: 10)
+Updated library 0: /tmp/library/2 (size: 20)
+Updated library 0: /tmp/library/2 (size: 30)
+Updated library 0: /tmp/library/2 (size: 40)
+Updated library 0: /tmp/library/2 (size: 50)
+Updated library 0: /tmp/library/2 (size: 60)
+Updated library 0: /tmp/library/2 (size: 70)
+Updated library 0: /tmp/library/2 (size: 80)
+Updated library 0: /tmp/library/2 (size: 90)
+Updated library 0: /tmp/library/2 (size: 100)
+Updated library 0: /tmp/library/2 (size: 110)
+Updated library 0: /tmp/library/2 (size: 120)
+Updated library 0: /tmp/library/2 (size: 130)
+Updated library 0: /tmp/library/2 (size: 140)
+Updated library 0: /tmp/library/2 (size: 150)
 Allocated rows: 1
 Valid rows: 1
 db[0] = /tmp/library/2 (enabled), size = 150
@@ -2474,8 +2657,12 @@ Importing: /home/anna/.ocarina-test/library/1
 Library already contains path: /tmp/library/2, skipping
 Importing: /home/anna/.ocarina-test/library/2
 Adding path: /tmp/library/3
+Added library 1: /tmp/library/3
+Updated library 1: /tmp/library/3 (size: 150)
 Importing: /home/anna/.ocarina-test/library/3
 Adding path: /tmp/library/4
+Added library 2: /tmp/library/4
+Updated library 2: /tmp/library/4 (size: 150)
 Allocated rows: 3
 Valid rows: 3
 db[0] = /tmp/library/2 (enabled), size = 150