Allow volume parameter to be scriptable

[ainslec]

(from Discord)

hi, is there a way to do:

: set_music_vol volume="25";

with a variable instead of a string?

I would like to do something like:

: set_integer var="sound_volume" value="25";
: set_musical_vol volume={(sound_volume)};

but all solutions I have tried are either failing or work but don't do anything:

: set_music_vol (sound_volume);
: set_music_vol volume -> (sound_volume);
: set_music_vol volume=(sound_volume);
: set_music_vol {
    volume -> (sound_volume)
}
: set_music_vol  volume -> (sound_volume);
: set_music_vol  volume="{sound_volume}";