- \override NoteHead #'transparent = ##t
- \override NoteHead #'no-ledgers = ##t
- \override Stem #'transparent = ##t
- \override Beam #'transparent = ##t
+ \override NoteHead.transparent = ##t
+ \override NoteHead.no-ledgers = ##t
+ \override Stem.transparent = ##t
+ \override Flag.transparent = ##t
+ \override Beam.transparent = ##t