Yes. Why?
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First and foremost, it shows commitment and discipline over a long period of time.
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Some people have positive stereotypes that they associate with musicians. I know, for example, that the data science team I work with affirmatively looks for college grads who have musical talent - they see a link between math/data science/music.
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Colleges that have orchestras will love to have an accompanist on campus. Would suggest that even though you don’t want to major in music, reach out to the orchestra director at the colleges you want to apply to and let them know your background and that you are applying.