Play diatonic scales in any key with one harmonica. Hohner's precision-crafted reeds generate great tone to complement your chops. The 270/48 Chromonica has 12 holes, 48 reeds, 5-5/8" long. Comes in base keys (starting note) of A, B, Bb, C, D, E, F, and G.

The Hohner Chromonica lets you play diatonic scales in any key with a single harmonica