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: 1
T: Sonny Brogan's Mazurka
M: 3/4
L: 1/8
R: mazurka
K: Dmaj
|: FG | A2 AG FA | d2>A2 BA | G2 GB AG |
| FG EF DF | A2 AG FA | d2>A2 BA | G2 Gg fe | d4 :|
|: e2 | f2 fa gf | e2 eg fe | d2 df ed | cd Bc A2 |
| f2 fa gf| e2 eg fe | dc df ec | d4 :|