Thanks for all your feedback on the previous release.
In this version I've added piano / guitar tones in addition to the simple sine waves it already had. I've improved the GUI look so it's doesn't look plain, I've also added text around a lot of stuff so it's not so confusing at first glance.
WTF is this?
A free interval to help you memorize your intervals, and eventually with practice, be able to play songs by ear.
See the video tutorial on how playing by ear works: Youtube HQ
See it in action here Trainear.com and download if you like.
Drag and drop the .swf file into your internet browser or stand alone flash player.