Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/square/William_Clarke_MS_1770.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3201-William_Clarke_MS_1770.ps) >>/Users/jc/w/tmp/Tune-3201-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/square/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-3201-Hamilton_HUTB2-1846-V1.abc 167 ABC music file with the extracted tune(s)
Tune-3201-Hamilton_HUTB2-1846-V1.ps 6 PostScript
Tune-3201-Hamilton_HUTB2-1846-V1.txt 167 Plain-text file with the extracted tune(s)
Tune-3201-William_Clarke_MS_1770.abc 161 ABC music file with the extracted tune(s)
Tune-3201-William_Clarke_MS_1770.ps 6 PostScript
Tune-3201-William_Clarke_MS_1770.txt 161 Plain-text file with the extracted tune(s)
Tune-3201-get.log 8608 Log file, useful mostly for debugging
Tune-32011-get.log 4585 Log file, useful mostly for debugging
Tune-32012-get.log 3404 Log file, useful mostly for debugging
Tune-32015-get.log 11487 Log file, useful mostly for debugging
Tune-32016-get.log 7500 Log file, useful mostly for debugging
Tune-32017-get.log 5087 Log file, useful mostly for debugging
These files should be available for 24 hours.