Just need to use two thumbs play to make a sound. Great for children as it is very simple and easy to learn. - Made with very smooth high quality wood with 17 adjustable keys. - Notes:D(2), B(7), G(5), E(3), C(1), A(6), F(4), D(2), C(1), E(3), G(5), B(7), D(2), F(4), A(6), C(1), E(3).