John Alexander . John Alexander continues to make an important contribution to the double bass repertoire. Bass-Cleft has much rhythmic momentum and drive, allied to musical and technical challenges, and is an extended one-movement work full of contrasts and moods. Since winning the 1999 BIBF Composition Competition, John Alexander has composed many works for double bass - beginner to virtuoso - in a strongly individual and independent voice. His works have been performed throughout the world and Recital Music is his main publisher.. Grade: 8 - Advanced