Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/PDF/AbrahamMackintosh.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8589-AbrahamMackintosh.ps) >>/Users/jc/w/tmp/Tune-8589-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/PDF/AbrahamMackintosh.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_85895.log 152494 Log file, useful mostly for debugging
Tune-8589-AbrahamMackintosh.abc 153 ABC music file with the extracted tune(s)
Tune-8589-AbrahamMackintosh.ps 6 PostScript
Tune-8589-AbrahamMackintosh.txt 153 Plain-text file with the extracted tune(s)
Tune-8589-get.log 4207 Log file, useful mostly for debugging
Tune-85892-Collections.abc 153 ABC music file with the extracted tune(s)
Tune-85892-Collections.pdf 2217 Portable Data Format
Tune-85892-Collections.ps 6 PostScript
Tune-85892-Collections.txt 153 Plain-text file with the extracted tune(s)
Tune-85892-get.log 4943 Log file, useful mostly for debugging
Tune-85893-get.log 4876 Log file, useful mostly for debugging
Tune-85894-get.log 11219 Log file, useful mostly for debugging
Tune-85897-get.log 3292 Log file, useful mostly for debugging
These files should be available for 24 hours.