Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Brodie/24CountryDances_1780_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4689-24CountryDances_1780_Skillern.ps) >>/Users/jc/w/tmp/Tune-4689-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Brodie/24CountryDances_1780_Skillern.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_4689.log 843 Log file, useful mostly for debugging
Tune-4689-24CountryDances_1780_Skillern.abc 168 ABC music file with the extracted tune(s)
Tune-4689-24CountryDances_1780_Skillern.ps 6 PostScript
Tune-4689-24CountryDances_1780_Skillern.txt 168 Plain-text file with the extracted tune(s)
Tune-4689-get.log 9371 Log file, useful mostly for debugging
Tune-46890-CDSS_Gems.abc 152 ABC music file with the extracted tune(s)
Tune-46890-CDSS_Gems.pdf 2217 Portable Data Format
Tune-46890-CDSS_Gems.ps 6 PostScript
Tune-46890-CDSS_Gems.txt 152 Plain-text file with the extracted tune(s)
Tune-46890-get.log 4893 Log file, useful mostly for debugging
Tune-46896-get.log 25081 Log file, useful mostly for debugging
Tune-46897-get.log 29162 Log file, useful mostly for debugging
Tune-46899-get.log 3923 Log file, useful mostly for debugging
These files should be available for 24 hours.