[Pipe Request] Chord Split

#1

Hi all.

I hope I’m doing the right thing by repeating in this section a suggestion I did in the general section.

I’d really like to see a pipe that can split a chord notes to different channels, for instance lowest note to CH1, middle note to CH2, highest note to CH3.

That’s particularly useful for playing a string or brass section live, where you match for example CH1 to cello, CH2 to viola and CH3 to violin.

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#2

Hey, thank you for the suggestion! One complexity of functionality like this is handling the cases when there’s 3 destination channels, but a different number of notes played at a time, like what would happen if only 2 notes are pressed at a time? Also what would happen if it’s 5 notes at the time? What would happen if the individual ‘voices’ move to other notes, or their melodic ‘paths’ cross each other, while the originally held down ones move or stay at the same note?

Do you have any ideas how this could be handled? :slight_smile:

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#3

I’ve been using the MidiDings library for this, in particular the VoiceFilter functionallity, so maybe that could be an example.

http://dsacre.github.io/mididings/doc/extra-units.html

Basically, you have a “fallback” parameter that defines which “side” of the chord is leading (highest or lowest note).

If fallback=highest and you play less notes than the defined channels, the highest note will be doubled (or tripled, etc.) and routed to the corresponding channels.

If fallback=highest and you play more notes than the defined channels, excess notes are discarded, starting from the lowest.

The “direction” is reversed if fallback=lowest.

In the end, if you define 4 channels, you will always hear 4 notes, one per channel, in extreme cases (you only play 1 note) all at unison.

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#4

P.S. regarding the other (interesting) questions you ask, well, the idea of this kind of pipe is to allow to more or less reproduce the feel of a brass section or similar style of accompaniment.

I ton’t think there’s a way to simulate a more melodic kind of music such as a quartetto. if you have parts that move a lot and/or even cross each other, then I fear you must play with two hands on a split keyboard.

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