ChordChanges for FretBoards

FretBoards can be set to display only when the chord changes or at the beginning of a new line.

\version "2.24.0"

\include "predefined-guitar-fretboards.ly"

\paper { tagline = ##f }

myChords = \chordmode {
  c1 c1 \break
  \set chordChanges = ##t
  c1 c1 \break
  c1 c1
}

<<
  \new ChordNames { \myChords }
  \new FretBoards { \myChords }
  \new Staff { \myChords }
>>