http://www.youtube.com/watch?v=s0AL5OXmQLQ

Here’s a preview of Green Oak’s Crystal (App Store link) for the iPad/iPhone/iPodTouch – a port of its popular freeware desktop synth.

See the video below for an overview of how to use Crystal for iOS.

http://www.youtube.com/watch?v=ZOwcc3aqe04

Note: Crystal for mobile devices comes in two versions:

• Crystal, basic version. With this version you can browse sounds, play notes, and create new sounds, taking advantage of its powerful semimodular synthesis engine.
• Crystal XT (available soon for a premium price) adds MIDI keyboard input via the iPad’s camera adapter and sharing of patches with the desktop version.