Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1779/CMCIT.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9229-CMCIT.ps) >>/Users/jc/w/tmp/Tune-9229-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1779/CMCIT.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-9229-CMCIT.abc 142 ABC music file with the extracted tune(s)
Tune-9229-CMCIT.ps 6 PostScript
Tune-9229-CMCIT.txt 142 Plain-text file with the extracted tune(s)
Tune-9229-get.log 3961 Log file, useful mostly for debugging
Tune-92292-24CountryDances_1805_Preston.abc 165 ABC music file with the extracted tune(s)
Tune-92292-24CountryDances_1805_Preston.ps 6 PostScript
Tune-92292-24CountryDances_1805_Preston.txt 165 Plain-text file with the extracted tune(s)
Tune-92292-get.log 4371 Log file, useful mostly for debugging
Tune-92295-24CountryDances_1809_Cahusac.abc 165 ABC music file with the extracted tune(s)
Tune-92295-24CountryDances_1809_Cahusac.pdf 2217 Portable Data Format
Tune-92295-24CountryDances_1809_Cahusac.ps 6 PostScript
Tune-92295-24CountryDances_1809_Cahusac.txt 165 Plain-text file with the extracted tune(s)
Tune-92295-get.log 5406 Log file, useful mostly for debugging
These files should be available for 24 hours.