Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NS_Anniv50/IgnatiusSancho_MCCD_v1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6638-IgnatiusSancho_MCCD_v1.ps) >>/Users/jc/w/tmp/Tune-6638-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NS_Anniv50/IgnatiusSancho_MCCD_v1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_66380.log 164266 Log file, useful mostly for debugging
Tune-6638-IgnatiusSancho_MCCD_v1.abc 165 ABC music file with the extracted tune(s)
Tune-6638-IgnatiusSancho_MCCD_v1.ps 6 PostScript
Tune-6638-IgnatiusSancho_MCCD_v1.txt 165 Plain-text file with the extracted tune(s)
Tune-6638-get.log 9094 Log file, useful mostly for debugging
Tune-66382-HeadlightJig.abc 626 ABC music file with the extracted tune(s)
Tune-66382-HeadlightJig.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-66382-HeadlightJig.ps 37378 PostScript
Tune-66382-HeadlightJig.txt 626 Plain-text file with the extracted tune(s)
Tune-66382-get.log 5554 Log file, useful mostly for debugging
Tune-66386-get.log 4009 Log file, useful mostly for debugging
Tune-66389-get.log 7087 Log file, useful mostly for debugging
These files should be available for 24 hours.