The SOLIST PRO 12 STEEL Solo allows you to play melodies with full three octaves of tonal range containing all of the notes of the major scale. The SOLIST PRO 12 STEEL Solo is equivalent to a chromatic harmonica without a slider - the design is that of a diatonic Blues harmonica. This makes this instrument interesting for both Folk or Blues or as an entrance into to the "chromatic world" - equipped with Stainless Steel reeds in holes 1 - 12. Many new playing features with only two holes more !