Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/AmericanSD/24CountryDances_1813_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9781-24CountryDances_1813_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-9781-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/AmericanSD/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_97817.log 157823 Log file, useful mostly for debugging
Form_97811.log 872 Log file, useful mostly for debugging
Sess-97813.log 100909 Log file, useful mostly for debugging
Tune-9781-24CountryDances_1813_Button_Whitaker.abc 179 ABC music file with the extracted tune(s)
Tune-9781-24CountryDances_1813_Button_Whitaker.ps 6 PostScript
Tune-9781-24CountryDances_1813_Button_Whitaker.txt 179 Plain-text file with the extracted tune(s)
Tune-9781-get.log 8856 Log file, useful mostly for debugging
Tune-97810-get.log 12668 Log file, useful mostly for debugging
Tune-97811-24CountryDances_1793_Preston.abc 193 ABC music file with the extracted tune(s)
Tune-97811-24CountryDances_1793_Preston.pdf 2217 Portable Data Format
Tune-97811-24CountryDances_1793_Preston.ps 6 PostScript
Tune-97811-24CountryDances_1793_Preston.txt 193 Plain-text file with the extracted tune(s)
Tune-97811-get.log 5572 Log file, useful mostly for debugging
Tune-97812-24CountryDances_1803_Preston.abc 193 ABC music file with the extracted tune(s)
Tune-97812-24CountryDances_1803_Preston.pdf 2217 Portable Data Format
Tune-97812-24CountryDances_1803_Preston.ps 6 PostScript
Tune-97812-24CountryDances_1803_Preston.txt 193 Plain-text file with the extracted tune(s)
Tune-97812-get.log 5572 Log file, useful mostly for debugging
Tune-97813-JohnJohnson_ChoiceCollectionVol8-V1.abc 172 ABC music file with the extracted tune(s)
Tune-97813-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-97813-JohnJohnson_ChoiceCollectionVol8-V1.txt 172 Plain-text file with the extracted tune(s)
Tune-97813-get.log 4639 Log file, useful mostly for debugging
Tune-97814-get.log 3888 Log file, useful mostly for debugging
Tune-97816-get.log 8801 Log file, useful mostly for debugging
These files should be available for 24 hours.