Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Tunes/EFDSS_CDM6.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6443-EFDSS_CDM6.ps) >>/Users/jc/w/tmp/Tune-6443-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Tunes/EFDSS_CDM6.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-6443-EFDSS_CDM6.abc 148 ABC music file with the extracted tune(s)
Tune-6443-EFDSS_CDM6.ps 6 PostScript
Tune-6443-EFDSS_CDM6.txt 148 Plain-text file with the extracted tune(s)
Tune-6443-get.log 4072 Log file, useful mostly for debugging
Tune-64430-get.log 5401 Log file, useful mostly for debugging
Tune-64435-CR2-abc1.abc 158 ABC music file with the extracted tune(s)
Tune-64435-CR2-abc1.pdf 2217 Portable Data Format
Tune-64435-CR2-abc1.ps 6 PostScript
Tune-64435-CR2-abc1.txt 158 Plain-text file with the extracted tune(s)
Tune-64435-get.log 9090 Log file, useful mostly for debugging
Tune-64438-get.log 11222 Log file, useful mostly for debugging
These files should be available for 24 hours.