lalily templates: options[Init|Get|Set|Add|Remove]
lalily templates: options[Init|Get|Set|Add|Remove]
Merge branch 'origin/alternating-time-sig'

Working version of \alternatingTimeSignatures.
I have not updated it to our snippets structure because I still
hope to include it directly into LilyPond.
alternating-time-signatures: make example clearer

now "reverts" to a \time that hasn't been in the alternating group
Merge branch 'alternating-time-sig' of https://github.com/openlilylib/snippets into alt-ts
Sketch of function with "Gould hyphen"