Boomwhacker pentatonic set at DC Music. Thank you for your interest in the Boomwhacker pentatonic set. Boomwhacker pentatonic set bwpg. Consisting of 6 notes, this set is great for people less familiar with music, younger children or working with a large group, as all the notes sound good together. A favorite tool for team building exercises and "instant music". Thank you for your interest in DC Music. With a friendly sales staff we'll do our best to provide you excellent service along with the lowest price. Feel free to contact us with any other information you might need. DC Music is the musician's store and staffed with musicians who want to help you find the right equipment for your needs.