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

http://www.sibelius.com/helpcenter/resources/midi_messages.pdf

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
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    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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We don't need a picture, the description is sufficient. It's a MIDI controller message. CC1 is Modulation. Now, I'm smelling a rat here. The default position of the Modulation Wheel (or equivalent) on an input device would be 0. 64 is a perfectly possible value, but consistent 'Cx,64' messages suggest a controller whose default position is 'centre' rather than 'off', like CC10 (Pan). Or one that has only two values - CC64 (sustain pedal) normally only takes values 0 or 64. But let's not read too much precision into your "'~C 1, 64' or something similar".

You can tell Sibelius whether to record CC messages when inputting using Flexitime. But if the MIDI file was imported from an outside source, it's common for it to start off with a whole bunch of MIDI commands, designed to initialize a General MIDI device for playback.

With a newly-imported General MIDI file, it's likely the CC messages are the ONLY items of Technique Text, so you can get rid of them all with a simple Filter operation for that Text Style. No need to filter specifically for text beginning with '~C' as is often advised.

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