Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MM4/24CountryDances_1813_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4048-24CountryDances_1813_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-4048-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MM4/24CountryDances_1813_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-4048-24CountryDances_1813_Button_Whitaker.abc 172 ABC music file with the extracted tune(s)
Tune-4048-24CountryDances_1813_Button_Whitaker.ps 6 PostScript
Tune-4048-24CountryDances_1813_Button_Whitaker.txt 172 Plain-text file with the extracted tune(s)
Tune-4048-get.log 13852 Log file, useful mostly for debugging
Tune-40480-get.log 5268 Log file, useful mostly for debugging
Tune-40481-get.log 12277 Log file, useful mostly for debugging
Tune-40482-get.log 9577 Log file, useful mostly for debugging
Tune-40483-get.log 3180 Log file, useful mostly for debugging
Tune-40484-get.log 14931 Log file, useful mostly for debugging
Tune-40485-get.log 9899 Log file, useful mostly for debugging
Tune-40486-get.log 4726 Log file, useful mostly for debugging
Tune-40488-get.log 9394 Log file, useful mostly for debugging
These files should be available for 24 hours.