Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MM2/24CountryDances_1818_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4554-24CountryDances_1818_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-4554-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MM2/24CountryDances_1818_Button_Whitaker.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-4554-24CountryDances_1818_Button_Whitaker.abc 172 ABC music file with the extracted tune(s)
Tune-4554-24CountryDances_1818_Button_Whitaker.ps 6 PostScript
Tune-4554-24CountryDances_1818_Button_Whitaker.txt 172 Plain-text file with the extracted tune(s)
Tune-4554-get.log 4608 Log file, useful mostly for debugging
Tune-45541-get.log 12830 Log file, useful mostly for debugging
Tune-45543-get.log 9125 Log file, useful mostly for debugging
Tune-45544-get.log 7082 Log file, useful mostly for debugging
Tune-45545-get.log 5546 Log file, useful mostly for debugging
Tune-45548-get.log 8753 Log file, useful mostly for debugging
These files should be available for 24 hours.