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I keep seeing this text '~C 1, 64' or something similar above a stave, what does it mean?

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Can you find a picture of it? – Dom Feb 12 '14 at 12:02
What kind of sheet music, for what instrument? The humorist in me suggests that's a very odd tuning for a low C :-) – Carl Witthoft Feb 12 '14 at 12:54
I'm afraid I can't find a picture for it – Daniel Feb 12 '14 at 13:16
Hi Carl The sheet music is not specific for any instrument, it's a generic midi file that has been fed into sibelius 7.0 – Daniel Feb 12 '14 at 13:17
It's just a MIDI modulation wheel command. It's not a part of an actual musical score. – Pat Muchmore Feb 12 '14 at 15:42

It is a MIDI instruction for Sibelius. This document covers MIDI directives:

I believe this particular message is a pan center command for playback.

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Actually, I think it's a mod wheel command, just setting the modulation to halfway on. Setting the pan to center would be ~C10,64. But at any rate, it shouldn't be showing up on the score. – Pat Muchmore Feb 12 '14 at 14:53
Pat, you're correct on both counts. – kiprainey Feb 12 '14 at 14:55
In Sibelius, whether it shows up in the score depends on whether the user enables the display of hidden commands or not. You can turn it on or off. – user1044 Feb 14 '14 at 20:31

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