Ensure tune graphic is confined to a single page. Set a maximum height for the graphic of 0.9 text area as well as the current target width of the text width. And also keep the aspect ratio. So if the height is small enough, you get full width. Otherwise the graphic is shrunk enough to keep it all on one page. Perhaps one can then go back and edit the tune to fit it into fewer lines.

X:1
T:Three Around Three
S:Nick Barber
M:4/4
L:1/8
Z:Steve Mansfield 2002
K:G
"G" d2BA G2G2 | "D" A2BA "G" G2D2 | "C" EDEF "G" G2AB | "D" c2B2 B2A2 |
"G" d2BA G2G2 | "D" A2BA "G" G2D2 | "C" EDEF "G" G2Ac | "G" BG "D" AF "G" G4 :|
|: "D" d2 ef "G" gfed | "C" e2e2 e2>e2 | "G" d2B2B2AG | "D" FGAB A4 |
   "D" d2ef "G" gfed | "C" e2e2e2d2 | "C" ef g2 "D" fgaf | "G" g2 b2 g4 :|