Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Pioneer/24CountryDances_1810_Button_Whitaker_Elegant.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5786-24CountryDances_1810_Button_Whitaker_Elegant.ps) >>/Users/jc/w/tmp/Tune-5786-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Pioneer/24CountryDances_1810_Button_Whitaker_Elegant.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-5786-24CountryDances_1810_Button_Whitaker_Elegant.abc 184 ABC music file with the extracted tune(s)
Tune-5786-24CountryDances_1810_Button_Whitaker_Elegant.ps 6 PostScript
Tune-5786-24CountryDances_1810_Button_Whitaker_Elegant.txt 184 Plain-text file with the extracted tune(s)
Tune-5786-get.log 4798 Log file, useful mostly for debugging
Tune-57860-get.log 10077 Log file, useful mostly for debugging
Tune-57861-get.log 9140 Log file, useful mostly for debugging
Tune-57862-get.log 3198 Log file, useful mostly for debugging
Tune-57863-get.log 1389 Log file, useful mostly for debugging
Tune-57866-get.log 5505 Log file, useful mostly for debugging
Tune-57867-get.log 6886 Log file, useful mostly for debugging
Tune-57869-get.log 5516 Log file, useful mostly for debugging
These files should be available for 24 hours.