Key Jazz

Keyjazz is a term first used in Fast Tracker II. It enabled the option to record notes in polyphonic mode across multiple tracks, also from your keyboard. There was a special button to turn this option on or off. Several other trackers implemented this idea also.

In Renoise, this is the same case, although it disappeared in version 1.5, but returned in 1.8 due to many arguments for this function’s inevitable use. (In 1.8 this feature is now called Chord Mode)