Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/JJC/24CountryDances_1781_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6610-24CountryDances_1781_Skillern.ps) >>/Users/jc/w/tmp/Tune-6610-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JJC/24CountryDances_1781_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_6610.log 1226 Log file, useful mostly for debugging
Tune-6610-24CountryDances_1781_Skillern.abc 165 ABC music file with the extracted tune(s)
Tune-6610-24CountryDances_1781_Skillern.ps 6 PostScript
Tune-6610-24CountryDances_1781_Skillern.txt 165 Plain-text file with the extracted tune(s)
Tune-6610-get.log 4455 Log file, useful mostly for debugging
Tune-66100-Kerr_MM1-V2.abc 150 ABC music file with the extracted tune(s)
Tune-66100-Kerr_MM1-V2.pdf 2217 Portable Data Format
Tune-66100-Kerr_MM1-V2.ps 6 PostScript
Tune-66100-Kerr_MM1-V2.txt 150 Plain-text file with the extracted tune(s)
Tune-66100-get.log 4945 Log file, useful mostly for debugging
Tune-66101-get.log 1396 Log file, useful mostly for debugging
Tune-66105-Collections.abc 150 ABC music file with the extracted tune(s)
Tune-66105-Collections.pdf 2217 Portable Data Format
Tune-66105-Collections.ps 6 PostScript
Tune-66105-Collections.txt 150 Plain-text file with the extracted tune(s)
Tune-66105-get.log 6319 Log file, useful mostly for debugging
Tune-66107-get.log 6367 Log file, useful mostly for debugging
Tune-66109-get.log 6145 Log file, useful mostly for debugging
These files should be available for 24 hours.