Jimmy Forrest took the 12 bar clues based 'Happy Go Luck Local' created by Duke Ellington and turned it into this incredibly effective driving jazz standard, made famous by Jimmy Smith, etc. With optional high/low trumpets this chart by Jerry Sheppard can be played with trumpet 1 no higher than E on the stave. Baritone solo cued on alto1, plus open section with blues scale. The perfect mid tempo number for developing jazz improvisation. Key B flat.