! ^%DIRNAME/hr$
! /chr$
! /a5$
! /\.git/
-r %DIRNAME

%nurohne(0)'/parts/'%dirname(0)/%dirname(0,-1).pdf:
%nurmit(0)'/parts/'%dirname(0,0,-1)/%dirname(0,-2,-1).pdf:

  ^%DIRNAME/.*/.*\.ly$

  %nurohne(0)'/parts/' \
    echo "lilypond %dirname(0)/%dirname(0,-1).ly"; \
    cd %dirname(0); \
    lilypond %dirname(0,-1).ly;

  %nurmit(0)'/parts/' \
    echo "lilypond %dirname(0,0,-1)/%dirname(0,-1).ly"; \
    cd %dirname(0,0,-1); \
    lilypond %dirname(0,-1).ly;