Other fonts than computer modern/feta nummer

[Giammarco Zacheo]

I would like to use in the header and elsewhere fonts different from 
Computer Modern.
I don't know anything about TeX. How can I do it?


I tried to change the feta-nummer font for multi-measure rests (feta-nummer 
is wonderful, but right now I'm making bass guitar transcriptions, and I 
would prefer a more...modern-like font). If I use a standard font (i.e. 
times), the whole rests disappear and latex gives me an error if I don't 
set the church rest limit to 1. Is there a way to avoid this but using a 
font different than feta-nummer for multi-measure numbers?