Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/polka/CDSS_CDoT.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5069-CDSS_CDoT.ps) >>/Users/jc/w/tmp/Tune-5069-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/polka/CDSS_CDoT.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-5069-CDSS_CDoT.abc 147 ABC music file with the extracted tune(s)
Tune-5069-CDSS_CDoT.ps 6 PostScript
Tune-5069-CDSS_CDoT.txt 147 Plain-text file with the extracted tune(s)
Tune-5069-get.log 4049 Log file, useful mostly for debugging
Tune-50690-get.log 4282 Log file, useful mostly for debugging
Tune-50691-get.log 11078 Log file, useful mostly for debugging
Tune-50695-get.log 3710 Log file, useful mostly for debugging
Tune-50699-24CountryDances_1804_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-50699-24CountryDances_1804_Thompson.ps 6 PostScript
Tune-50699-24CountryDances_1804_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-50699-get.log 9338 Log file, useful mostly for debugging
These files should be available for 24 hours.