Piper is a smaller version and more affordable version of the classic Imbarimba. It features increased durability and the same professionally tuned sound. Piper includes 11 fiberglass keys in C Major pentatonic scale which allows it to produce a unique yet complementary sound to the other Freenotes instruments. Piper is designed to be enjoyed by ages two through adult, and is a great instrument for improvised rhythms. Color as shown.n.