Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MM4/EFDSS_CDM5.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-74982-EFDSS_CDM5.ps) >>/Users/jc/w/tmp/Tune-74982-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MM4/EFDSS_CDM5.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-74982-10594_American_Hornpipe.abc 751 ABC music file with the extracted tune(s)
Tune-74982-10594_American_Hornpipe.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-74982-10594_American_Hornpipe.ps 34974 PostScript
Tune-74982-10594_American_Hornpipe.txt 751 Plain-text file with the extracted tune(s)
Tune-74982-EFDSS_CDM5.abc 146 ABC music file with the extracted tune(s)
Tune-74982-EFDSS_CDM5.ps 6 PostScript
Tune-74982-EFDSS_CDM5.txt 146 Plain-text file with the extracted tune(s)
Tune-74982-get.log 17232 Log file, useful mostly for debugging
These files should be available for 24 hours.