ReSlice - Slice your audio with an advanced, rhythmic arpeggiator and FX.
YuMe - A multi-screen video advertising company providing digital video brand advertising solutions.
Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
Theremin - Multitouch synth instrument that makes an array of sounds
nlog Synth - Professional Virtual Analogue Synthesizer ::: check nlogmusic at YouTube :::
Google Music Lab - Interactive experiments that use the Web Audio API