Render tune title, subtitle and composer in Latex/HTML and not in the image. This way the titles remains a constant size even if the image needs to be scaled. And we have that text appearance under our control. I can't find a way of switching off the tune title in abcm2ps, and have worked around by setting the title format to Y0. Y is not a defined ABC header and is not found in any Dottes tune.

X:102
T:Harper's Frolick
S:Nick Barber
R:Polka
N:Change: ThreeAroundThree.abc
M:4/4
L:1/4
Q:160
K:D
A/G/ | "D" F A/F/ D A/G/ | "D" F A/F/ Dd | "A" cdec | "D" d/c/d/e/ f A/G/ |
   | "D" F A/F/ D A/G/ | "D" F A/F/ Dd | "A" cdec | "D" d3 :|
|: e | "D" f>e d/c/ d | "A" geeg | "D" fddf | "A" e/d/c/B/ A2 |
     | "D" f>e d/c/ d | "A" geeg | "D" fd "A" ec | "D" d2 d :|