On Tunatic's VersionTracker page and the Tunatic website (http://www.wildbits.com/tunatic/) it says the application works with Mac OS X 10.2 and up.

However, it certainly doesn't work on my Mac OS X 10.2.8 system. Within seconds of launching, and after a brief appearance in the menu bar, Tunatic crashes, taking down the Window Server and Loginwindow system processes with it.

The Console log of the crash reads:

dyld: /Applications/Audio Apps/Tunatic.app/Contents/MacOS/Tunatic Undefined symbols:
/Applications/Audio Apps/Tunatic.app/Contents/MacOS/Tunatic undefined reference to _getlogin_r expected to be defined in /usr/lib/libSystem.B.dylib

From my experience this is a typical Console log report produced by the crash of an application that the developer thinks is OS X 10.2 compatible, but actually isn't because of the version of compiler used. I don't recall the exact details, nor am I a developer myself, but a while ago I dug around online trying to resolve a similar failure of a supposedly 10.2-compatible app, and I think it was in a document on the Apple website that explained how this happens if you compile with certain versions of GCC? Does that make sense? Anyway, it wasn't too hard to find the info, if any actual developer is interested in the question -- just google with some of the text form the Console log excerpt I give above, and whatever other terms make sense to you. I know I found it fairly quickly.