mppopmd supports the following commands:
rate: “rate RATING( TRACK)?” set the rating to RATING for TRACK if it
is given, or the current track if it is not. If TRACK is given, it will be
interpreted as a song URI.
setpc: “setpc PC( TRACK)?” set the play count to PC for TRACK if it
is given, or the current track if it is not. If TRACK is given, it will be
interpreted as a song URI.
setlp: “setlp LP( TRACK)?” set the last-played timestamp to
LP for TRACK if it is given, or the current track if it is not. If
TRACK is given, it will be interpreted as a song URI.
findadd: “findadd FILTER” apply FILTER in a case-sensitive manner
and add all matching songs to the play queue
searchadd: “searchadd FILTER” apply FILTER in a
case-insensitive manner and add all matching songs to the play queue