Re: Shortcut for \repeat unfold

[Hans Åberg]

> On 25 Sep 2021, at 18:37, Werner LEMBERG <wl@gnu.org> wrote:
> 
>>> And I think it would be nice to have an even more natural variant
>>> for that; I think it's reasonable to provide & show/recommend
>>> convenient solutions for standard tasks (rather than say "you can
>>> define your own abbreviation here if you know how to do so") - for
>>> example,
>>> 
>>> \*2 ""    or    \x2 ""
>>> 
>>> which would be my favourite.
>> 
>> Perhaps the LilyPond syntax might be tweaked so that identifiers
>> starting with a UTF-8 multi-byte (high bit set) character do not
>> need the backslash.  Then simply ×2 would look good.
> 
> This reminds me of TeX's 'active characters'.  I think we shouldn't go
> this route.  IMHO, a command should always be introduced with a
> backslash.

The idea here is different, it is for identifiers, and in the input syntax 
only, does not change the internal semantics at all. It is good not having to 
type backslash when a command is used.