The Collaborative International Dictionary
Accordionist
Accordionist \Ac*cor"di*on*ist\, n. A player on the accordion.
Wiktionary
accordionist
n. A player of the accordion.
WordNet
accordionist
n. a musician who plays the accordion
Usage examples of "accordionist".
Then, after the cornetist and the horn player and the trombonist and the tuba player and the accordionist had each learned his individual part, Beck would beg from Goesle two men at a time, then three, and so on—and call in Hannibal and his drum—and rehearse them gradually at playing in unison.