Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Sets/CSRHW-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5323-CSRHW-abc1.ps) >>/Users/jc/w/tmp/Tune-5323-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Sets/CSRHW-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
Form_53238.log 948 Log file, useful mostly for debugging
Tune-5323-CSRHW-abc1.abc 147 ABC music file with the extracted tune(s)
Tune-5323-CSRHW-abc1.ps 6 PostScript
Tune-5323-CSRHW-abc1.txt 147 Plain-text file with the extracted tune(s)
Tune-5323-get.log 4064 Log file, useful mostly for debugging
Tune-53230-get.log 5531 Log file, useful mostly for debugging
Tune-53232-get.log 3214 Log file, useful mostly for debugging
Tune-53234-EliasHowe_MusiciansCompanionP3-1844-V2.abc 179 ABC music file with the extracted tune(s)
Tune-53234-EliasHowe_MusiciansCompanionP3-1844-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-53234-get.log 3714 Log file, useful mostly for debugging
Tune-53237-24CountryDances_1801_Preston.abc 169 ABC music file with the extracted tune(s)
Tune-53237-24CountryDances_1801_Preston.txt 169 Plain-text file with the extracted tune(s)
Tune-53237-get.log 3534 Log file, useful mostly for debugging
Tune-53239-get.log 53234 Log file, useful mostly for debugging
These files should be available for 24 hours.