Re: MIDI & repeats

[Henning Hraban Ramm]

Am 02.08.22 um 18:10 schrieb Benjamin Tordoff:
> Hi all, I’m wondering if there’s a smart way to make the midi output for a 
> particular part do the following two things (both common in Sousa marches):
>
> 1. Have a part play only on 2nd time through the repeat.
> 2. Have different dynamic for 1st and 2nd times through repeat.
>
> A minimal example of how I would typically typeset this is below but produces 
> midi output that plays all repeats with uniform volume. I've had a good hunt 
> around the internet for examples of doing this but either I'm searching for the 
> wrong things or this is a somewhat obscure request!

You already have different blocks for PDF and MIDI, that’s a start.

In such cases, I usually define more, smaller parts that I combine 
differently, like

first = { s1 | s1 | }
second = { c''1 | c''1 | }

notes = {
\repeat volta 2 { \second }
}

midis = {
\first \second
}

Also, use another variable for dynamics that you can combine like

<< \dynamics \notes >>

Hraban

> Thanks in advance.
>
> Ben
>
>
> \version "2.23.10"
>
> notes = {
>    \repeat volta 2 {
>      <>^\markup{(2nd time only)}
>      c''1 | c''1 |
>    }
>    \repeat volta 2 {
>      <>_\markup {\dynamic "pp" "(2nd time " \dynamic "ff" ")"}
>      d''1 | d''1 |
>    }
> }
>
> \score { % PDF output
>    << \new Staff \notes >>
>    \layout {}
> }
>
> \score { % MIDI output
>    \unfoldRepeats << \new Staff \notes >>
>    \midi {}
> }