Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MacNab02/JamesJohnson_ScotsMusicalMuseumV5-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5129-JamesJohnson_ScotsMusicalMuseumV5-V2.ps) >>/Users/jc/w/tmp/Tune-5129-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MacNab02/JamesJohnson_ScotsMusicalMuseumV5-V2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-5129-CR-abc1-001.eps 49344 Encapsulated PostScript, for inclusion in PS files, HTML pages, etc.
Tune-5129-CR-abc1.abc 1743 ABC music file with the extracted tune(s)
Tune-5129-CR-abc1.txt 1743 Plain-text file with the extracted tune(s)
Tune-5129-JamesJohnson_ScotsMusicalMuseumV5-V2.abc 177 ABC music file with the extracted tune(s)
Tune-5129-JamesJohnson_ScotsMusicalMuseumV5-V2.ps 6 PostScript
Tune-5129-JamesJohnson_ScotsMusicalMuseumV5-V2.txt 177 Plain-text file with the extracted tune(s)
Tune-5129-get.log 108010 Log file, useful mostly for debugging
Tune-51294-get.log 5607 Log file, useful mostly for debugging
Tune-51295-get.log 5033 Log file, useful mostly for debugging
These files should be available for 24 hours.