Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1808/CJSurtees.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5921-CJSurtees.ps) >>/Users/jc/w/tmp/Tune-5921-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1808/CJSurtees.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_59213.log 1527 Log file, useful mostly for debugging
Tune-5921-CJSurtees.abc 146 ABC music file with the extracted tune(s)
Tune-5921-CJSurtees.ps 6 PostScript
Tune-5921-CJSurtees.txt 146 Plain-text file with the extracted tune(s)
Tune-5921-get.log 4043 Log file, useful mostly for debugging
Tune-59210-get.log 1394 Log file, useful mostly for debugging
Tune-59211-get.log 3979 Log file, useful mostly for debugging
Tune-59214-get.log 1366 Log file, useful mostly for debugging
Tune-59219-CaledonianCountryDances.abc 166 ABC music file with the extracted tune(s)
Tune-59219-CaledonianCountryDances.ps 6 PostScript
Tune-59219-CaledonianCountryDances.txt 166 Plain-text file with the extracted tune(s)
Tune-59219-get.log 4421 Log file, useful mostly for debugging
These files should be available for 24 hours.