This series of CD recordings is completely dependent upon the musician being a current owner of the original Real Book. This is a Play Along CD recording for Experienced/semi-professional Jazz Soloists. If you cannot play along with the band, at the tempo, they set, then try the next tune. You cannot modify the recording (i.e. Band) in any way. The Band is exceptional and this set of recordings fully accomplishes it intended, and stated, purpose. I'll admit, the picture is not accurate, but it does draw attention to the fact that you need the original Real Book set of music that goes along with this set of CDs.