Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/PDF/William_Clarke_MS_1770.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7436-William_Clarke_MS_1770.ps) >>/Users/jc/w/tmp/Tune-7436-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/PDF/William_Clarke_MS_1770.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-7436-William_Clarke_MS_1770.abc 158 ABC music file with the extracted tune(s)
Tune-7436-William_Clarke_MS_1770.ps 6 PostScript
Tune-7436-William_Clarke_MS_1770.txt 158 Plain-text file with the extracted tune(s)
Tune-7436-get.log 18895 Log file, useful mostly for debugging
Tune-74360-get.log 8626 Log file, useful mostly for debugging
Tune-74361-get.log 3240 Log file, useful mostly for debugging
Tune-74362-get.log 8382 Log file, useful mostly for debugging
Tune-74364-get.log 4797 Log file, useful mostly for debugging
Tune-74365-get.log 8727 Log file, useful mostly for debugging
Tune-74367-get.log 11274 Log file, useful mostly for debugging
These files should be available for 24 hours.