MIDI Channel Routing for Piano on iPad

My Clavinova CVP-905 accepts a 2 channel MIDI file for playback in practice modes, vary the tempo, mute left or right, etc. but it needs the MIDI file to assign the treble clef to channel 1 and bass to channel 2. Everything is going to channel 1 and the routing controls don’t seem to do anything.

On the playback screen there’s a Routine panel leading to a controls window to set the ports and channels for MIDI - except I can’t get it to do anything!

Is this one of those features that only works if you pay full price (in which case it should be greyed out) or am I missing something?

Is this a Dorico problem or a Clavinova problem? I’m not clear from your description.

To create a MIDI Out instrument in Dorico Pro, use the VST & MIDI tab in Play mode, and then assign a MIDI instrument there.

@Lillie_Harris , what search terms should I use to find a description of this in the manual?

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Hi Derrek

It’s a Dorico problem. The MIDI file contains only a single audio channel. In the screen shots below form Dorico iPad the layout is a little different, I can increase the number of channels for the piano, it just won’t assign the second one to the piano and of course break the notes between the staves.

It one channel version plays the correct notes but I loose feature like muting the melody as the bass plays and vice versa. Also Clavinova regents the score from the MIDI data so everything is stuffed into the treble clef making it impossible to read .

I’ll see if I can add the second screen shots in another post but the system’s only allowing me 1.

Here’s the initial menu..

No, certainly iPad will not have the flexibility or capabilities that the Pro version has, but I don’t understand why you have trouble assigning notes to the lower staff of a Piano grand staff.

Dorico by default routes each instrument to a single channel, regardless of how many voices or staves it has.

However, you can enable independent voice playback, which provides a separate track and channel for each voice belonging to that instrument.

Because notes that are natively on the top and bottom piano staves are in separate voices, enabling IVP for a piano effectively sends each stave to a separate channel.

As for manual search terms: the best way to resolve that would be to know how either of you would phrase what you wanted to achieve as a single question? “How do I get…” ?

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The issue isn’t getting notes to appear on the Dorico bass stave, it’s having the MIDI file produced with those notes on channel 2 of port 1.

@Lillie_Harris is really close to the answer I think (still have to do 1 test), the independent voice playback needs to be enabled and one needs to change the voice setting, as the notes are entered, to “down stem voice 2” — at least to get the effect I’m looking for.

No. Upstem voice 1 on the treble stave is a different voice from upstem voice 1 on the lower stave.

The only confusion that may occur is if you have used cross-stave notes (in which case the voices remain associated with their original stave)

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You should post a Dorico file with, say, two measures of music and let the folks here look at it. This would likely save you lots of time.

Agreed. With IPV on the treble and bass go to channels 1 & 2 which is what I want. But I also learned I can have another voice going to channel 3 and that could be interesting down the road.

Thanks.