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: Balance the Straw
A: Fieldtown
M: 6/8
L: 1/8
Q: 120
K: G
P: A
D |: "G" G2 B BAB | "C" c2 A ABc | "D7" ded cBA |\
  [1 "G" B2 A G2 D :| [2 "G" B2 A GBc ||
P: B
|: "G" d2 d d2 B | c2 c "D7" B2 A | "G" ded BGB |\
   "D7" c2 B A2 D | "G" G2 B BAB |
   "C" c2 A ABc | "D7" ded cBA | [1 "G" B2 A GBc :| [2 "G" B2 A G3 |]