Consists of 7 notes: C to B. The bass tubes add a whole new dimension to the sound and musical possibilities. Combine with the standard Diatonic Set to form two full octaves. Tubes range in length from approx 26 to 47

• Basic low octave set of 7 tubes
• Diatonic major scale from C28-B39
• Fun and easy for musicians of all ages to play together
• Part of the Percussion Plus Colour Matching Note System
• Made in the UK