Re: How to Mimic LilyPond \markup \justify in LaTeX

PS.

> I never really sat down to understand the mechanism of size selection, 
> but reading the definition of \abs-fontsize backwards, I obtain:
>
Turns out it's actually quite simple.

The internal "relative" size is in units of 'magstep', which are 
designed such that 6 magstep units precisely mean a doubling of the 
size. Since this is a logarithmic scale, we obtain a nice additivity 
feature:

\markup \fontsize #2 \fontsize #3 magicalmysterytrainride

is equivalent to

\markup \fontsize #5 magicalmysterytrainride

The paper parameter text-font-size (which I had never encountered before)

\paper {
   text-font-size = 24
}

uses absolute font sizes (defaulting to 11 when not changed by 
#(set-global-staff-size ...)). Hence the way to obtain the current 
absolute font size for a markup is to read the text-font-size parameter 
and multiply it with the font-size property (which is in magstep units, 
so has to be turned into the actual multiplicative factor by using the 
magstep function) of the markup property chain.

Lukas