Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/12Minuets12Dances/24CountryDances_1813_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6536-24CountryDances_1813_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-6536-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/12Minuets12Dances/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
Coll_65368.log 271686 Log file, useful mostly for debugging
Coll_65369.log 260446 Log file, useful mostly for debugging
Tune-6536-24CountryDances_1813_Button_Whitaker.abc 186 ABC music file with the extracted tune(s)
Tune-6536-24CountryDances_1813_Button_Whitaker.ps 6 PostScript
Tune-6536-24CountryDances_1813_Button_Whitaker.txt 186 Plain-text file with the extracted tune(s)
Tune-6536-get.log 4688 Log file, useful mostly for debugging
Tune-65360-get.log 5032 Log file, useful mostly for debugging
Tune-65368-get.log 3986 Log file, useful mostly for debugging
Tune-65369-get.log 9450 Log file, useful mostly for debugging
These files should be available for 24 hours.