Move Change: notice closer to the bottom of the tune graphic. I was using \begin{center}..\end{center} to centre the tune graphic, followed by the change notice, if any. But this leaves a paragraph gap after the center section and hence a gap between tune graphic and change notice. Change to use figures to position the graphic, include the change notice as a caption, and use {\centering} around the image to centre just the image.

X:1
T: Mazurka d'Avignon
M:3/4
L:1/8
K:G
"G" DG GF G2 | DB BA B2 | "Am" cB AG FG | "D" AG FE D2 |
"G" DG GF G2 | DB BA B2 | "Am" cB AG FG | "D" AB "G" G2 z2 :|
(Bc) |\
"G" d2 de dc | B2 B2 AB | "C" c2 cd cB | "D" A2 A2 (Bc) |
"G" d2 de dc | B2 B2 AB | "Am" cB AG FG | "D" AB "G" G2 z2 :|