Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MCCD/24CountryDances_1803_Gray_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3465-24CountryDances_1803_Gray_Thompson.ps) >>/Users/jc/w/tmp/Tune-3465-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MCCD/24CountryDances_1803_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-3465-24CountryDances_1803_Gray_Thompson.abc 171 ABC music file with the extracted tune(s)
Tune-3465-24CountryDances_1803_Gray_Thompson.ps 6 PostScript
Tune-3465-24CountryDances_1803_Gray_Thompson.txt 171 Plain-text file with the extracted tune(s)
Tune-3465-get.log 9251 Log file, useful mostly for debugging
Tune-34651-get.log 7520 Log file, useful mostly for debugging
Tune-34652-get.log 3051 Log file, useful mostly for debugging
Tune-34653-get.log 4451 Log file, useful mostly for debugging
Tune-34654-get.log 13801 Log file, useful mostly for debugging
Tune-34655-get.log 8081 Log file, useful mostly for debugging
Tune-34656-get.log 10390 Log file, useful mostly for debugging
Tune-34657-get.log 8245 Log file, useful mostly for debugging
Tune-34658-get.log 2961 Log file, useful mostly for debugging
These files should be available for 24 hours.