Hello! I’m a beginner, like, I haven’t even played it yet. I was going to follow some guides and write the letters on my keys, when I realized, that melodica have 22 white keys while mine has 19 white keys??? I have 32 all together… Can someone help? Is this wrong, or just a different style? How can I figure out which keys are which? I’ve never played anything with keys before, I’ve always played drums.