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From: | Silvain Dupertuis |
Subject: | Re: Function for turning music upside-down. |
Date: | Tue, 28 Mar 2023 09:30:18 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 |
I have been asked to take a piece of music (which I already have in LilyPond), and mirror it vertically. That's to say, to take each note which is n semitones above middle c and replace it with the note n semitones below middle c, and vice versa.
Before I start trying to write a function to do this, I thought I'd ask if anyone has or is aware of a snippet which can already do this?
Thanks,Paul
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