- Tuning: G major diatonic - 10-hole harmonica with high-quality reeds made of phosphor bronze - Incl. stylish softcase and cleaning cloth - Highest product and sound quality - Round holes, loud, rocking sound - Modern, ergonomic design - Cover made of high-quality stainless steel - Comb made of ABS plastic The Ocean Rock harmonica by CASCHA is ideal for professional players and those who want to become one. With its modern design it is an absolute eyecatcher. The round holes allow an ...