Abstract Melody is an experimental iPhone/iTouch musical instrument. Get on iTunes - Official Website It plays something like a piano, and sounds like a guitar. The whammy bar allows you to get the effect of a slider guitar, and do vibrato. You can apply several effects to the sound (flanger, 12-string, tremelo), and as well record your songs and play them back later. Demo video on YouTube: http://www.youtube.com/watch?v=H19J_ECPtkQ Screenshots: Enjoy!