acordeonista (both genders)
accordionist
an "accordionist"
Mark Twain called the accordion "the stomach Steinway."
A "harmonicanist" is what a person who plays the harmonica is called.
A person who plays Scrabble is called a Scrabbler. (unofficially)
A person who is half Spanish and half Filipino is commonly referred to as a "Filipino-Spanish" or "Spanish-Filipino" individual.
Canadiense
Chilean
A drummer or percussionist plays the drums.
harpist
An organist
a cymbalist