Len Harrison was a bottom end man, performing with vigor on both bass and bass saxophone and even picking up the odd credit, and it is an odd one at that, for playing contrabass trombone with Django Reinhardt. Not that it would be any harder to keep up with the gypsy guitarist on contrabass trombone than any other instrument. Harrison was also utilized as both a baritone and tenor saxoponist by bandleaders such as Benny Carter, an adept arranger who made good use of multi-instrumentalists.
Active on the British jazz scene from the mid '30s, this player was eventually catagorized simply as a bassist. By this time the makings of a hefty discography already existed as the result of the aforementioned Reinhardt and Carter projects, the latter artist having organized a special large ensemble for one of his earlier European tours. Harrison was often the choice for such international mixtures, including Fats Waller And His Continental Rhythm. Also featuring guitarist Alan Ferguson, this group recorded a series of tracks in London in 1938.