A System Common MIDI message that tells a device how many sixteenth-notes have passed since the beginning of the MIDI sequence file. An SPP message is generally sent in conjunction with a Continue message in order to start playback from the middle of a song. Alternately, by reading a sync signal (such as FSK or SMPTE timecode) recorded on a tape track and converting it to an SPP message, a synchronizer could instruct a MIDI sequencer to start playing a sequence at a given location and keep it in sync with the tape.