• Viking_Hippie@lemmy.world
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    1 month ago

    Fun fact: opera can be used as an effective form of self defense. Being trained to resonate clearly throughout a packed opera hall without amplificatuon enables you to produce very

    We’re talking “tiny woman who happens to be a trained soprano bursting the ear drums of a would-be attacker with nothing but a high note” loud!

    • callmepk@lemmy.world
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      1 month ago

      It’s a piano practice book from China called 拜厄钢琴基本教程 (Beyer Piano Basic tutorial). I don’t know much about piano, so I think this is a book on piano lessons about Ferdinand Beyer? Something like that

    • XTL@sopuli.xyz
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      1 month ago

      No idea. Maybe someone can read the Klingon.

      But the tune and numbering (fingers, 1 high on left, low on right hands part) makes me think that’s for piano.