Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/ScotsMusicalMuseumV5/BonAccordCollection.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5591-BonAccordCollection.ps) >>/Users/jc/w/tmp/Tune-5591-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ScotsMusicalMuseumV5/BonAccordCollection.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-5591-BonAccordCollection.abc 172 ABC music file with the extracted tune(s)
Tune-5591-BonAccordCollection.ps 6 PostScript
Tune-5591-BonAccordCollection.txt 172 Plain-text file with the extracted tune(s)
Tune-5591-get.log 8346 Log file, useful mostly for debugging
Tune-55910-get.log 9604 Log file, useful mostly for debugging
Tune-55911-get.log 7467 Log file, useful mostly for debugging
Tune-55912-CSRHW-abc2.abc 146 ABC music file with the extracted tune(s)
Tune-55912-CSRHW-abc2.pdf 2217 Portable Data Format
Tune-55912-CSRHW-abc2.ps 6 PostScript
Tune-55912-CSRHW-abc2.txt 146 Plain-text file with the extracted tune(s)
Tune-55912-get.log 13333 Log file, useful mostly for debugging
Tune-55913-get.log 3708 Log file, useful mostly for debugging
Tune-55915-get.log 9771 Log file, useful mostly for debugging
Tune-55919-CSR-abc2.abc 158 ABC music file with the extracted tune(s)
Tune-55919-CSR-abc2.txt 158 Plain-text file with the extracted tune(s)
Tune-55919-get.log 6446 Log file, useful mostly for debugging
These files should be available for 24 hours.