Discuss Tracks here, one of three bonus tweetblast apps added to the nanoBundle for all customers.
When you open Tracks you'll find that it's deceptively hidden interface wise: most of your interaction with the app will be through its menu item and keyboard shortcuts. But once you figure the app out, you'll find yourself rarely having to go into iTunes, and even better, being able to instantly summon up what you want to hear with a few keystrokes/search instead of dealing solely on playlists or iTunes' clunky and comparatively sluggish browsing.
Tracks is a pretty young app, so your feedback will direct much of its near future of development, so feel free to let the developer know what you think!
Co-Creator of MacHeist, Clear, Partner at tap tap tap | follow me on twitter