TuneStudio is a compact four-channel mixer for the iPod. The player is completely integrated into the mixer's design, which allows natural interaction with the player's screen and user interface and makes it possible to create CD-quality stereo recordings directly on the iPod's hard drive. Recordings are immediately playable from the iPod's music library. TuneStudio makes it easy for experienced and novice users alike to create professional sounding, multi-channel digital audio for podcasts, music or video soundtracks. When connected to a computer via USB, TuneStudio extends the ability of computer-based music recording and editing software to work with analog instruments and microphones.