Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Gow/CR4-abc2.abc/CR-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7424-CR-abc1.ps) >>/Users/jc/w/tmp/Tune-7424-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CR4-abc2.abc/CR-abc1.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-7424-CR-abc1.abc 156 ABC music file with the extracted tune(s)
Tune-7424-CR-abc1.ps 6 PostScript
Tune-7424-CR-abc1.txt 156 Plain-text file with the extracted tune(s)
Tune-7424-get.log 4077 Log file, useful mostly for debugging
Tune-74241-get.log 8096 Log file, useful mostly for debugging
Tune-74242-SCD_RoyGoldring_14SocialDancesFor2000.abc 190 ABC music file with the extracted tune(s)
Tune-74242-SCD_RoyGoldring_14SocialDancesFor2000.txt 190 Plain-text file with the extracted tune(s)
Tune-74242-get.log 9440 Log file, useful mostly for debugging
Tune-74243-get.log 5581 Log file, useful mostly for debugging
Tune-74245-dance.abc 140 ABC music file with the extracted tune(s)
Tune-74245-dance.txt 140 Plain-text file with the extracted tune(s)
Tune-74245-get.log 3082 Log file, useful mostly for debugging
Tune-74246-get.log 9834 Log file, useful mostly for debugging
Tune-74247-get.log 3176 Log file, useful mostly for debugging
These files should be available for 24 hours.