Tony Osborne . Composed in 1980, Green Bass Blues combines elements of swing, blues and rock'n'roll, in a lively and rhythmic idiom that appeals to players of all ages. It has been performed at bass workshops and concerts throughout the world, and can be played by massed basses. An effective use of the 12-bar blues, with a swinging triplet accompaniment, demonstrate the composer at his jazzy best.. Grade: 4 - 5