Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MMM2/24CountryDances_1805_Gray_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4364-24CountryDances_1805_Gray_Thompson.ps) >>/Users/jc/w/tmp/Tune-4364-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MMM2/24CountryDances_1805_Gray_Thompson.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-4364-24CountryDances_1805_Gray_Thompson.abc 171 ABC music file with the extracted tune(s)
Tune-4364-24CountryDances_1805_Gray_Thompson.ps 6 PostScript
Tune-4364-24CountryDances_1805_Gray_Thompson.txt 171 Plain-text file with the extracted tune(s)
Tune-4364-get.log 12588 Log file, useful mostly for debugging
Tune-43640-get.log 4565 Log file, useful mostly for debugging
Tune-43641-get.log 9712 Log file, useful mostly for debugging
Tune-43642-get.log 7905 Log file, useful mostly for debugging
Tune-43643-get.log 4776 Log file, useful mostly for debugging
Tune-43644-get.log 7030 Log file, useful mostly for debugging
Tune-43645-get.log 7308 Log file, useful mostly for debugging
Tune-43646-get.log 5319 Log file, useful mostly for debugging
Tune-43647-get.log 9035 Log file, useful mostly for debugging
Tune-43648-get.log 4180 Log file, useful mostly for debugging
Tune-43649-get.log 9142 Log file, useful mostly for debugging
These files should be available for 24 hours.