On 2022-07-25 1:56 pm, Kevin Cole wrote:
frets = \chordmode { f4 c4:7 g4:7 c4 bf4 d4:m }
^^^^^^^^^^ Input is in chord mode. Modifiers like :m and :7 work.
frets = { g4 c4 a4 d4:7 }
^ Missing \chordmode. :7 indicates a tremolo with an invalid duration. -- Aaron Hill