Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book14/Kerr_MM1-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4798-Kerr_MM1-V1.ps) >>/Users/jc/w/tmp/Tune-4798-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book14/Kerr_MM1-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_47984.log 284812 Log file, useful mostly for debugging
Coll_47985.log 142759 Log file, useful mostly for debugging
Tune-4798-Kerr_MM1-V1.abc 150 ABC music file with the extracted tune(s)
Tune-4798-Kerr_MM1-V1.ps 6 PostScript
Tune-4798-Kerr_MM1-V1.txt 150 Plain-text file with the extracted tune(s)
Tune-4798-get.log 4095 Log file, useful mostly for debugging
Tune-47983-get.log 5874 Log file, useful mostly for debugging
Tune-47985-DanielWright_ECPMH.abc 159 ABC music file with the extracted tune(s)
Tune-47985-DanielWright_ECPMH.ps 6 PostScript
Tune-47985-DanielWright_ECPMH.txt 159 Plain-text file with the extracted tune(s)
Tune-47985-get.log 4183 Log file, useful mostly for debugging
Tune-47986-get.log 104339 Log file, useful mostly for debugging
Tune-47987-get.log 91078 Log file, useful mostly for debugging
These files should be available for 24 hours.