What is the difference between a 12-hole and a 16-hole chromatic harmonica? - Quora
Chromatic Harmonica - A Guide from The Harmonica Company
c scale harmonica notes
Is there any diatonic harmonica which can play all the twelve notes? I want to have a diatonic harmonica which can play all the notes. I don't want valved chromatic hamonica. -
Amazon.com: Swan, 16 Holes 64 Sounds, Chromatic Harmonica, Key of C, Anodized Black Copper Cover-plate, Master Version : Musical Instruments