MUSIC

[] - "Use Aviary's music creator to simulate dozens of musical instruments including piano, guitars and drums. Create music loops and patterns for use in Aviary's [|audio editor] (Myna) or as ring tones."

[|http://www.musictheory.net/]- "offers music theory lessons covering everything from basic note recognition to difficult chord inversions. The lessons can now be customized to test users on the notes and concepts they need to practice the most."