Nothing done in between. Nothing new installed. Here's the first chunk of the crash log -
Process: GarageBand [19461]
Path: /Applications/GarageBand.app/Contents/MacOS/GarageBand
Identifier: com.apple.garageband
Version: 6.0.5 (428.5)
Build Info: GarageBand_App-4280500~3
App Item ID: 408980954
App External ID: 6848868
Code Type: X86 (Native)
Parent Process: launchd [132]
User ID: 501
Date/Time: 2012-11-24 15:13:07.377 +0000
OS Version: Mac OS X 10.8.2 (12C60)
Report Version: 10
Interval Since Last Report: 358780 sec
Crashes Since Last Report: 6
Per-App Interval Since Last Report: 100161 sec
Per-App Crashes Since Last Report: 6
Anonymous UUID: BD37C927-F636-1CF4-30C4-2E85ABFDFAAA
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000008a36fc36
VM Regions Near 0x8a36fc36:
__LINKEDIT 000000003e083000-000000003e0a5000 [ 136K] r--/rwx SM=COW /System/Library/Frameworks/GLUT.framework/Versions/A/GLUT
-->
__TEXT 000000008febb000-000000008feee000 [ 204K] r-x/rwx SM=COW /usr/lib/dyld
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.music.apps.Logic 0x00adfc22 CSong::GetAuConfPoint(CInst const*, SAUCONF**) const + 17858
1 com.apple.music.apps.Logic 0x00ae9271 CSong::GetAuConfPoint(TGInstID, SAUCONF**) const + 27761
2 com.apple.music.apps.Logic 0x00aeacfa CSong::GetAuConfPoint(TGInstID, SAUCONF**) const + 34554
3 com.apple.music.apps.Logic 0x00f6ea73 CEvNote::Print(CSong const*) const + 87011
4 com.apple.music.apps.Logic 0x00c32298 CSong::CreateGInstBuf(TGInstBufID, long) + 1288
5 com.apple.music.apps.Logic 0x00c1b61d CSong::GetAuConfPoint(TGInstID, SAUCONF**) const + 1282077
6 com.apple.music.apps.Logic 0x00ac831d LgDocumentSetKeyAndMajor + 1021
7 com.apple.music.apps.Logic 0x00ac8676 LgDocumentOpen + 566
8 com.apple.garageband 0x000c81de 0x1000 + 815582
9 com.apple.Foundation 0x9014aaa0 _decodeObjectXML + 1871
10 com.apple.Foundation 0x90059410 _decodeObject + 245
11 com.apple.garageband 0x00208b43 0x1000 + 2128707
12 com.apple.garageband 0x00207d68 0x1000 + 2125160
13 com.apple.AppKit 0x92b87bf8 -[NSDocument _initWithContentsOfURL:ofType:error:] + 168
14 com.apple.AppKit 0x92b878bd -[NSDocument initWithContentsOfURL:ofType:error:] + 308
15 com.apple.garageband 0x000c3256 0x1000 + 795222
16 com.apple.AppKit 0x92fd7f78 -[NSDocumentController makeDocumentWithContentsOfURL:ofType:error:] + 383
17 com.apple.AppKit 0x92fe3d80 -[NSDocumentController(NSDeprecated) openDocumentWithContentsOfURL:display:error:] + 898
18 com.apple.garageband 0x0006fb7c 0x1000 + 453500
19 com.apple.AppKit 0x92fd52a6 -[NSDocumentController _openDocumentsWithContentsOfURLs:presentErrors:completionHandler:] + 194
20 com.apple.AppKit 0x92b17a64 __37-[NSDocumentController openDocument:]_block_invoke_0 + 63
21 com.apple.AppKit 0x92b70a8d -[NSDocumentController beginOpenPanelWithCompletionHandler:] + 380
22 com.apple.AppKit 0x92b1726d -[NSDocumentController openDocument:] + 413
23 com.apple.garageband 0x0006f06f 0x1000 + 450671
24 com.apple.AppKit 0x92fdabf2 __86-[NSDocumentController closeAllDocumentsWithDelegate:didCloseAllSelector:contextInfo:]_block_invoke_0 + 276
25 com.apple.AppKit 0x92fdaac7 -[NSDocumentController closeAllDocumentsWithDelegate:didCloseAllSelector:contextInfo:] + 209
26 com.apple.garageband 0x0006dca7 0x1000 + 445607
27 com.apple.garageband 0x0006f025 0x1000 + 450597
28 libobjc.A.dylib 0x91d9a5d3 -[NSObject performSelector:withObject:] + 70
29 com.apple.AppKit 0x92d64bd2 -[NSApplication sendAction:to:from:] + 436
30 com.apple.garageband 0x00069ac6 0x1000 + 428742
31 com.apple.AppKit 0x92d649e0 -[NSControl sendAction:to:] + 102
32 com.apple.AppKit 0x92d648ef -[NSCell _sendActionFrom:] + 159
33 com.apple.AppKit 0x92d62e60 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 1895
34 com.apple.AppKit 0x92d6269f -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 511
35 com.apple.AppKit 0x92d61db9 -[NSControl mouseDown:] + 867
36 com.apple.AppKit 0x92d59a21 -[NSWindow sendEvent:] + 6968
37 com.apple.AppKit 0x92d54a0f -[NSApplication sendEvent:] + 4278
38 com.apple.garageband 0x000692bb 0x1000 + 426683
39 com.apple.AppKit 0x92c6e72c -[NSApplication run] + 951
40 com.apple.AppKit 0x92c116f6 NSApplicationMain + 1053
41 com.apple.garageband 0x0019cae0 0x1000 + 1686240
42 com.apple.garageband 0x0000311a 0x1000 + 8474
Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x90e689ae kevent + 10
1 libdispatch.dylib 0x90684c71 _dispatch_mgr_invoke + 993
2 libdispatch.dylib 0x906847a9 _dispatch_mgr_thread + 53
Thread 2:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x90e657d2 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x90e64cb0 mach_msg + 68
2 com.apple.CoreFoundation 0x96ada599 __CFRunLoopServiceMachPort + 185
3 com.apple.CoreFoundation 0x96adff7f __CFRunLoopRun + 1247
4 com.apple.CoreFoundation 0x96adf63a CFRunLoopRunSpecific + 378
5 com.apple.CoreFoundation 0x96adf4ab CFRunLoopRunInMode + 123
6 com.apple.Foundation 0x9004113a +[NSURLConnection(Loader) _resourceLoadLoop:] + 395
7 com.apple.Foundation 0x900a51d8 -[NSThread main] + 45
8 com.apple.Foundation 0x900a515b __NSThread__main__ + 1396
9 libsystem_c.dylib 0x90fa4557 _pthread_start + 344
10 libsystem_c.dylib 0x90f8ecee thread_start + 34