octaveShift property
int
get
octaveShift
Displacement in octaves in force right now (0 outside every span).
Sign convention is IDENTICAL to Clef.octaveShift: 8va is +1 and must
print 7 half-space positions LOWER, because the printed note sits an octave
below the pitch it sounds.
Implementation
int get octaveShift => _active?.octaveShift ?? 0;