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The MIDI Forum

  Wednesday, 16 November 2016
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I was wondering if specification and best practice allows for controller messages and program change messages to be sent on the same channel, or if its one channel per channel voice message? Would sending multiple channel voice messages via the same MIDI channel cause issues?

Thank you,
Ed
more than a month ago
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#494
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Controller and Program Change message affect only the channel they are sent on, so you must send them on the same channel as the Note messages they belong to.
more than a month ago
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#493
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It is normal to send program change and control change messages to the same channel. For example, if your MIDI device uses General MIDI sounds, the following messages will change channel 1 to a flute, then set channel 1's volume to 100:

C0 [program change channel 1]
49 [program 74, flute]

B0 [control change channel 1]
07 [controller 7, channel volume]
64 [value 100]
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