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: Emma From Finland
M: 3/4
L: 1/4
O: Finland
Q: 140
K: FMaj
D/F/ |: "Dm" A2 A | F D F | A2 A | F D D/F/ |
"A7" E2 E/F/ | G F E | [1 "Dm" D>EF/G/ | A2 D/F/ :| [2 D3 | "n.c." D F A |]
"Gm" d2 d | d c B | "Dm" A2 A | A G F |
"A7" E2 E/F/ | G F E | [1 "Dm" D3 | "n.c." D F A :| [2 "Dm" D3 | D2 |]