| Track type | Chord. |
| Purpose | Retrieve the rhythm pattern for a sequence of chords stored in a measure in the track. |
| Data Type (*pParam) | DMUS_RHYTHM_PARAM. The TimeSig member must be initialized before this structure is passed to GetParam. |
| mtTime | The time, in track time, at or directly after the beginning of the measure containing the rhythm pattern to be retrieved from the track. |