Chord changes for fretboards
Fretboards can be set to display only when the chord changes, or at the beginning of a new line.
\include "predefined-guitar-fretboards.ly" myChords = \chordmode { c1 c1 \break \set chordChanges = ##t c1 c1 \break c1 c1 } << \new ChordNames { \myChords } \new FretBoards { \myChords } \new Staff { \myChords } >>