The Black Keys
The Boomwhackers 5 Note Chromatic Set contains the 5 sharps/flats to create a standard octave. The pentatonic scale it forms has its own pleasing sound. Combine this Boomwhackers set with the Diatonic Scale to create a full chromatic octave of 13 notes from C to C. (Contains: Db, Eb, Gb, Ab, and Bb -or- C#, D#, F#, G#, and A#)