Bass Part-A highly original and effective concert setting of the Latin Missa brevis in which the various movements embrace a variety of jazz styles. The characterful Piano accompaniment can be played as written or serve as a guide and Bass and Drums can join in ad lib. The Bass part is notated with chord symbols and may be played as written or used as a guide from which the player may improvise freely. For SSA or SATB Piano and optional Bass and Drumkit ad lib.