rest & bar parsing
allow note octave
allow ! as whitespace
allow phrase marks
remove comments & concat lines ending with \
added comment titles
parse octave modifier
fixed order in parse-note-height
parse accidentals
removed debug printing
ignore whitespace in parser
remove-whitespace is no longer needed
also remove calling of remove-whitespace
parse key separately
split up parse-descriptors + stub parse-key
removed debug printing
descriptors->env
parse key descriptor
env key-modifiers
add accidental according to key