ARMONICA Harmonica 20 voices in C in red colour. The Happy Coulour is an authentic Richter harmonica with 10 holes and plastic covers that is available in four different finishes. An excellent and affordable beginner instrument suitable for blues, folk or rock music. Features: 0.9mm aluminium foil, plastic comb, 20 longs, fine DO major, frosted plastic covers, also available in blue, green and yellow.