Excellent PLAY-A-LONG title from JAMEY AEBERSOLD JAZZ publisher determined for intermediate to advanced singers and musicians playing any instrument. The book contains lyrics for all the songs and notes for every pitch (C, Bb, Eb and bass clef instruments). Attached CD contains grat „live“ accompaniment without melodic instrument or vocal, melodies and improvisations are waiting just for you. For piano and bass practice is left and right channel divided as follows: P – piano, drums a L - bass, drums). Very worthy, variable and helpful title.