Playing the “Melodica” iPhone App on my iTouch 2g. Melodica, by CandyCane, is a musical melody app for the Iphone or Itouch that lets you play tunes like the tenori-on or the Tone Matrix. I had my itouch plugged into my computer speakers. You Can record your music or sounds by using a 3.5mm cable from the itouch to your computer sound card and use something like Audacity to record. Can be done with any app on the iphone/itouch.