If a keyboard is hooked to a computer, using MIDI, a computer sequencing program is capable of recording a musical performance. The original MIDI spec called for 16 separate channels. However, multi-port devices now exist that allow for more channels. MIDI controllers Performance characteristics within the MIDI standard. Characteristics include volume, modulation, panning, etc.
Most sequencers allow recording and editing of controller data.
A list of MIDI events that have to be transmitted at specific times. The MIDI events typically consist of note-ons, controller changes, or program changes. MIDI merging When two individual MIDI data streams are brought together and forwarded as a single MIDI event stream. For example, the two data streams might be from two keyboards, or a single keyboard and a foot controller, and you may wish to record the sum of the two into a sequencer. A patch bay wired with MIDI cables that controls the routing of messages to and from all MIDI devices in a studio.