A musician who plays the accordion.
From accordion (from German Akkordeon, from Akkord 'chord') plus -ist (a suffix meaning 'one who plays' or 'practitioner of'). The accordion itself is a relatively modern instrument, invented in the early 1800s.
Accordionists have wildly different reputations depending on where you are—they're virtuosos in classical circles in Eastern Europe, street performers in Paris, and beloved in tango and folk traditions. The same instrument, totally different cultural status!
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