Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/12Minuets12Dances/JamesJohnson_ScotsMusicalMuseumV4-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2567-JamesJohnson_ScotsMusicalMuseumV4-V2.ps) >>/Users/jc/w/tmp/Tune-2567-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/12Minuets12Dances/JamesJohnson_ScotsMusicalMuseumV4-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
Coll_25670.log 259041 Log file, useful mostly for debugging
Coll_25673.log 1334352 Log file, useful mostly for debugging
Coll_25674.log 261851 Log file, useful mostly for debugging
Tune-2567-JamesJohnson_ScotsMusicalMuseumV4-V2.abc 186 ABC music file with the extracted tune(s)
Tune-2567-JamesJohnson_ScotsMusicalMuseumV4-V2.ps 6 PostScript
Tune-2567-JamesJohnson_ScotsMusicalMuseumV4-V2.txt 186 Plain-text file with the extracted tune(s)
Tune-2567-get.log 4686 Log file, useful mostly for debugging
Tune-25672-get.log 2914 Log file, useful mostly for debugging
Tune-25674-get.log 4935 Log file, useful mostly for debugging
Tune-25675-get.log 4602 Log file, useful mostly for debugging
These files should be available for 24 hours.