Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/V8/24CountryDances_1812_JGray.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3393-24CountryDances_1812_JGray.ps) >>/Users/jc/w/tmp/Tune-3393-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/V8/24CountryDances_1812_JGray.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-3393-24CountryDances_1812_JGray.abc 161 ABC music file with the extracted tune(s)
Tune-3393-24CountryDances_1812_JGray.ps 6 PostScript
Tune-3393-24CountryDances_1812_JGray.txt 161 Plain-text file with the extracted tune(s)
Tune-3393-get.log 4388 Log file, useful mostly for debugging
Tune-33933-IgnatiusSancho_MCCD_v2.abc 159 ABC music file with the extracted tune(s)
Tune-33933-IgnatiusSancho_MCCD_v2.pdf 2217 Portable Data Format
Tune-33933-IgnatiusSancho_MCCD_v2.ps 6 PostScript
Tune-33933-IgnatiusSancho_MCCD_v2.txt 159 Plain-text file with the extracted tune(s)
Tune-33933-get.log 5234 Log file, useful mostly for debugging
Tune-33934-get.log 4124 Log file, useful mostly for debugging
Tune-33938-Remick.abc 159 ABC music file with the extracted tune(s)
Tune-33938-Remick.pdf 2217 Portable Data Format
Tune-33938-Remick.ps 6 PostScript
Tune-33938-Remick.txt 159 Plain-text file with the extracted tune(s)
Tune-33938-get.log 4866 Log file, useful mostly for debugging
These files should be available for 24 hours.