Skipping time without any output

[Sven Axelsson]

I'm I misreading the manual here? It says that s4 will create an
invisible rest which takes up space in the system, while \skip will
just skip time and create no output. But the example in section 1.2.2
Invisible rests clearly shows that \skip generates visible space. As
far as I can see s4 and \skip 4 generates exactly the same output.

Is there another way of just skipping time with no output whatsoever?
This is quite often needed when padding a partial bar in an
\alternative, for instance. I have dealt with this by using a scaling
duration on the last note in the bar, and that works, but frankly it
can be a bit hard to calculate the correct duration sometimes. And it
would be nicer if there was an explicit command available.

Thanks a lot

-- 
Sven Axelsson
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