Music Minus One (MMO) is a music production and recording company in Westchester, New York. Their recordings are meant to be accompanied by the listener on whichever instrument (or voice type) is excluded from the recording, as an aid to practice, or as an accompaniment to home performance. The technique is the same as the later development of karaoke for the voice. More to the point the recordings have two versions, first the entire piece is played including the soloist, then the MMO version omits the solo player, hence this track is now the accompaniment, whether a small Classical Music ensemble, or a Jazz Band. Watching the score, and or playing along with the full music, the student can learn about every aspect of the performance such as timing and expressiveness of the soloist's perfo