Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MM2/24CountryDances_1765_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7486-24CountryDances_1765_Thompson.ps) >>/Users/jc/w/tmp/Tune-7486-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MM2/24CountryDances_1765_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-7486-24CountryDances_1765_Thompson.abc 165 ABC music file with the extracted tune(s)
Tune-7486-24CountryDances_1765_Thompson.ps 6 PostScript
Tune-7486-24CountryDances_1765_Thompson.txt 165 Plain-text file with the extracted tune(s)
Tune-7486-get.log 4457 Log file, useful mostly for debugging
Tune-74860-get.log 3930 Log file, useful mostly for debugging
Tune-74862-get.log 3324 Log file, useful mostly for debugging
Tune-74864-get.log 5232 Log file, useful mostly for debugging
Tune-74868-24CountryDances_1809_Cahusac_AK.abc 168 ABC music file with the extracted tune(s)
Tune-74868-24CountryDances_1809_Cahusac_AK.txt 168 Plain-text file with the extracted tune(s)
Tune-74868-get.log 3562 Log file, useful mostly for debugging
These files should be available for 24 hours.