A musician who plays a number of different instruments.(noun)
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Use "multi-instrumentalist" in a sentence
"This prodigious multi-instrumentalist's name became known throughout clubland in the mid-90s thanks to debut release Gabrielle."
"Sugarland, essentially the power pairing of Georgia peach Nettles and her songwriting partner/multi-instrumentalist/comedic foil Kristian Bush, likes to continually stretch the boundaries of the generic genre known as classic country."
"By the age of 17, the multi-instrumentalist banjo, guitar, ukulele, piano went pro."