Bb-Flat-A-Loogoo is a boogaloo to be played in straight eighths. It has the form of a classic 12-bar blues and is written in Bb concert pitch, a key most frequently used in sessions.Solo parts may be inserted – for instance, after letter E – to provide for additional opportunities for improvisation. The piece can, then, be resumed as written from letter F on cue.During improvisation, the baritone saxophone goes on performing the notated bass figure whereas the remaining three voices can play over the 12-bar blues pattern. Improvising alternately by trading fours might even enhance the attraction of the composition.The minor blues scales starting from the root notes of G and E supply the Eb instruments with the necessary tonal material:G Bb C Db D FE G A Bb B DCorrespondingly, the Bb instruments shall have to use the minor blues scales starting from C and A:C Eb F Gb G BbA C D Eb E G