Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/EmpireCollection/24CountryDances_1818_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8313-24CountryDances_1818_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-8313-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EmpireCollection/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-8313-24CountryDances_1818_Button_Whitaker.abc 185 ABC music file with the extracted tune(s)
Tune-8313-24CountryDances_1818_Button_Whitaker.ps 6 PostScript
Tune-8313-24CountryDances_1818_Button_Whitaker.txt 185 Plain-text file with the extracted tune(s)
Tune-8313-get.log 11836 Log file, useful mostly for debugging
Tune-83133-get.log 5739 Log file, useful mostly for debugging
Tune-83134-get.log 4418 Log file, useful mostly for debugging
Tune-83135-get.log 4658 Log file, useful mostly for debugging
Tune-83136-get.log 9698 Log file, useful mostly for debugging
Tune-83138-get.log 13059 Log file, useful mostly for debugging
Tune-83139-get.log 13985 Log file, useful mostly for debugging
These files should be available for 24 hours.