Voicing:     TEACHING AID

They're wild! They're "whacky!" They're wonderful! They're your ticket to non-stop fun! Boomwhackers Tuned Percussion Tubes are brightly colored plastic tubes that are tuned by length to musical notes. Affordably prices, easy to play and lots of fun! Use the Octavator Tube Caps to drop the tone of a tube by an octave, creating a possible 3-octave range. Everyone can play them - and kids think they're a blast! Whack just about anything - and boom! You're making music! 7-tube Treble Extension Set starts where the C Major diatonic set leaves off and contains C#1, D1, D#1, E1, F1, F#1 and G1.