Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1770/ViolaRuth_Pioneer.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3937-ViolaRuth_Pioneer.ps) >>/Users/jc/w/tmp/Tune-3937-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1770/ViolaRuth_Pioneer.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_39374.log 974 Log file, useful mostly for debugging
Tune-3937-ViolaRuth_Pioneer.abc 154 ABC music file with the extracted tune(s)
Tune-3937-ViolaRuth_Pioneer.ps 6 PostScript
Tune-3937-ViolaRuth_Pioneer.txt 154 Plain-text file with the extracted tune(s)
Tune-3937-get.log 4213 Log file, useful mostly for debugging
Tune-39373-TornadoReel.abc 510 ABC music file with the extracted tune(s)
Tune-39373-TornadoReel.ps 36779 PostScript
Tune-39373-TornadoReel.txt 510 Plain-text file with the extracted tune(s)
Tune-39373-get.log 4554 Log file, useful mostly for debugging
Tune-39375-get.log 5883 Log file, useful mostly for debugging
Tune-39378-24FavouriteDances_1779_Straight.abc 168 ABC music file with the extracted tune(s)
Tune-39378-24FavouriteDances_1779_Straight.pdf 2217 Portable Data Format
Tune-39378-24FavouriteDances_1779_Straight.ps 6 PostScript
Tune-39378-24FavouriteDances_1779_Straight.txt 168 Plain-text file with the extracted tune(s)
Tune-39378-get.log 5491 Log file, useful mostly for debugging
Tune-39379-get.log 4716 Log file, useful mostly for debugging
These files should be available for 24 hours.