Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/CDM5/ERM-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9859-ERM-V1.ps) >>/Users/jc/w/tmp/Tune-9859-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CDM5/ERM-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
Tune-9859-ERM-V1.abc 143 ABC music file with the extracted tune(s)
Tune-9859-ERM-V1.ps 6 PostScript
Tune-9859-ERM-V1.txt 143 Plain-text file with the extracted tune(s)
Tune-9859-get.log 7478 Log file, useful mostly for debugging
Tune-98590-get.log 4910 Log file, useful mostly for debugging
Tune-98591-get.log 3364 Log file, useful mostly for debugging
Tune-98592-get.log 5085 Log file, useful mostly for debugging
Tune-98593-get.log 3352 Log file, useful mostly for debugging
Tune-98595-get.log 18704 Log file, useful mostly for debugging
Tune-98598-get.log 8997 Log file, useful mostly for debugging
Tune-98599-get.log 249897 Log file, useful mostly for debugging
These files should be available for 24 hours.