MinorSeventh is an ear training web application written in flash, HTML and JavaScript. 
The application currently focuses on interval recognition.

I've created the musical notes used and you're free to use them in your application. 
The webapp itself is licensed under the BSD License, with the exception of 
SoundManager 2 and JQuery/JQueryUI, which have there own license that can be found at:

http://www.schillmania.com/projects/soundmanager2/license.txt (the BSD license)

And:

http://jquery.org/license (the MIT license)

A copy of the BSD license can be found in license.txt in the MinorSeventh
repository.