>> If I do
>>
>> ```
>> convert-ly en/notation/rhythms.itely > /dev/null
>> ```
>>
>> I get the following two warnings.
>>
>>
>> ```
>> Not smart enough to convert music following \fine.
>>
>> Warning: \fine no longer enforces the end of the music. If your piece
>> has music following \fine that you want to exclude when it is
>> unfolded, use \volta to exclude it.
>> Please refer to the manual for details, and update manually.
>>
>> Not smart enough to convert BreathingSign to Divisio.
>>
>> MensuralStaff and VaticanaStaff now use Divisio_engraver to engrave
>> divisiones as Divisio grobs.
>>
>> Previously, the respective Voice-aliased contexts used
>> Breathing_sign_engraver to engrave divisiones as BreathingSign grobs.
>> Because of the new names and the move from Voice to Staff, layout
>> adjustments for the old scheme are not effective for the new.
>>
>> If you are not content with the new default layout, deal with Divisio
>> and Divisio_engraver in the appropriate Staff-aliased context.
>> Please refer to the manual for details, and update manually.
>> ```
>>
>>
>> AFAICS, these warnings are unfounded; they are rather artifacts of
>> `convert-ly`, which applies regular expressions 'too globally'.
This was a thinko on my side: `convert-ly` uses the line
```
@c \version "2.21.0"
```
at the very beginning of `en/notation/rhythms.itely`; it is fully
sufficient to 'lift' this version number to something higher than the
warning.
Sorry for the noise.
Werner
