Once you've got your sequencers and sounds going you can mix them with the retro-styled mixer. With two synth channels and six more for the drum machine, you get the basics: solo, mute buttons, pan, gain and effect mix knobs, along with a volume slider for each channel. A master level and solo/mute button are provided, along with a button for switching the selected effect in or out.
28 different effects types are available, including the usual reverb, delay and distortion jobs. There are also filters and dynamics. The comb filter is an unexpected treat. Effects can be edited with two knobs in the master channel, the roles of which vary depending on the selected effect.
When you have a finished track, you can share it with other apps via AudioCopy, iTunes or make use of Korg's PolyStage, a SoundCloud-based community sharing service.
Oh, and WIST is supported, naturally, and though it's not mentioned in Korg's press, we had the iPolysix playing via virtual MIDI from the Little MIDI Machine sequencing app running on the same iPad.
Listen to the iPolysix in action