Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/CR/_.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9096-_.ps) >>/Users/jc/w/tmp/Tune-9096-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CR/_.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-9096-_.abc 136 ABC music file with the extracted tune(s)
Tune-9096-_.ps 6 PostScript
Tune-9096-_.txt 136 Plain-text file with the extracted tune(s)
Tune-9096-get.log 3865 Log file, useful mostly for debugging
Tune-90960-get.log 2858 Log file, useful mostly for debugging
Tune-90962-JamesOswald_CPC-abc1.abc 161 ABC music file with the extracted tune(s)
Tune-90962-JamesOswald_CPC-abc1.txt 161 Plain-text file with the extracted tune(s)
Tune-90962-get.log 8417 Log file, useful mostly for debugging
Tune-90964-get.log 5184 Log file, useful mostly for debugging
Tune-90966-get.log 5694 Log file, useful mostly for debugging
These files should be available for 24 hours.