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I inherited this with a box of piano sheet music, some of which was for beginners, and vaguely recall seeing one ages ago at a music store. It’s about the right size for wearing like a pair of brass knuckles, but I have large hands and it’s slightly large even on me.

My best guess is a finger spreader for somehow enforcing good hand posture on a keyboard, but it seems rather unwieldy for that.

Metal ‘m’ device

Dom
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brichins
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1 Answers1

49

It's a clip that you use to hold music books open on the stand, like so:

Music book clip

MattPutnam
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