Melodica 37 tangenter inkl. taske. The Belcanto M-037 is an ideal, accessible and expressive musical instrument for kids and beginners who would like to know more about making music. For keyboard players and pianists the melodica is a neat, affordable and authentic addition to their collection. Melodicas appear in different styles of music like jazz, reggae, rock and pop music. The M-037 melodica has 37 keys, which means you can play 3 octaves (from f-f''').