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: 6
T:Mazurka de Lapleau
N: Change: MazurkaAvignon.abc
M:3/4
L:1/8
K:G
DG|B2Bd BG|B2Bd BG|A2Ac BA|B2G2DG|
B2Bd BG|B2Bd BG|A2Ac BA|G4:|
|:dB|GD GB dB|c2A2cA|FD FA cA|B2G2dB|
GD GB dB|c2A2cA|FD FA cA|G4:|