sustain to a note. However, since they are also simple MIDI devices, foot switches can usually be configured to turn on and off any MIDI controlled function, such as switching one of the DSP effects, or the auto-harmony. Keyboard ensemble In live performances, multiple electronic keyboards could be played together at one time, each by one musician, forming a keyboard ensemble. Keyboard ensembles are mostly performed within a band on an elaborate stage, while some can even serve as a simpler substitute to the more conventional orchestra, replacing stringed and wind instruments. See also Synthesizer Digital piano Electronic organ MIDI controller Sound module Software synthesizer References Electric and electronic keyboard instruments Keyboard instruments