Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/slide/ERM-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9398-ERM-V2.ps) >>/Users/jc/w/tmp/Tune-9398-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/slide/ERM-V2.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_93980.log 161017 Log file, useful mostly for debugging
Coll_93982.log 229 Log file, useful mostly for debugging
Tune-9398-ERM-V2.abc 144 ABC music file with the extracted tune(s)
Tune-9398-ERM-V2.ps 6 PostScript
Tune-9398-ERM-V2.txt 144 Plain-text file with the extracted tune(s)
Tune-9398-get.log 3988 Log file, useful mostly for debugging
Tune-93981-get.log 3326 Log file, useful mostly for debugging
Tune-93988-get.log 4040 Log file, useful mostly for debugging
Tune-93988-v2tune.abc 145 ABC music file with the extracted tune(s)
Tune-93988-v2tune.ps 6 PostScript
Tune-93988-v2tune.txt 145 Plain-text file with the extracted tune(s)
Tune-93989-get.log 1303 Log file, useful mostly for debugging
These files should be available for 24 hours.