Additive time signatures

I have a piece with an additive time signature of 4+3+⅜. But I want the display to say ⅝. How can I do this?

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Welcome to the forum - you will like it here!

Now for your question: I’m not sure how your time signature could add up to 5/8 (?)

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Is this the structure you want?

image

If you want just 5/8. but with 4+3+3/16 beaming, you would just input 5/8 and deal with beam breaking in another way.

But I may be wrong - anybody?

I apologise - I want to have a 5/4 time signature with a 4+3+3/8 grouping. I have been able to do it in 5/4 and then fix the beaming, but I would like to do it natively, so that when I’m inputing many bars the grouping is already done. Otherwise I could input all the music in 4+3+3/8, and then change to 5/4, but how do I then instruct Dorico to lock the beaming?

You can enter 5/4 in the first bar, and a hidden 4+3+3/8 from the second bar on. Then you only need to manually adjust the beaming in bar 1.

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I expect one would need brackets around the numerator of that time signature:
[4 + 3 + 3]/8

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Well, not if you’re hiding it anyway…

Great that sounds a good solution

That gives 10/8 which is not what I want. I tried [2+1.5+1.5]/4 but that didn’t work.

Derrek was describing the hidden meter for your second bar. (4+3+3/8) will do it. (Square brackets not needed, but round parentheses will hide it.)

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Ah I see. That’s quite elegant.