Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/3D2006/24CountryDances_1810_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1793-24CountryDances_1810_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-1793-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/3D2006/24CountryDances_1810_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-1793-24CountryDances_1810_Button_Whitaker.abc 175 ABC music file with the extracted tune(s)
Tune-1793-24CountryDances_1810_Button_Whitaker.ps 6 PostScript
Tune-1793-24CountryDances_1810_Button_Whitaker.txt 175 Plain-text file with the extracted tune(s)
Tune-1793-get.log 8328 Log file, useful mostly for debugging
Tune-17931-get.log 4658 Log file, useful mostly for debugging
Tune-17933-get.log 9523 Log file, useful mostly for debugging
Tune-17934-get.log 4547 Log file, useful mostly for debugging
Tune-17935-get.log 3836 Log file, useful mostly for debugging
Tune-17936-get.log 4751 Log file, useful mostly for debugging
Tune-17937-get.log 8854 Log file, useful mostly for debugging
Tune-79815-24CountryDances_1793_Preston.abc 172 ABC music file with the extracted tune(s)
Tune-79815-24CountryDances_1793_Preston.txt 172 Plain-text file with the extracted tune(s)
Tune-80038-24CountryDances_1793_Preston.abc 172 ABC music file with the extracted tune(s)
Tune-80038-24CountryDances_1793_Preston.ps 6 PostScript
Tune-80038-24CountryDances_1793_Preston.txt 172 Plain-text file with the extracted tune(s)
Tune-89530-24CountryDances_1793_Preston.abc 175 ABC music file with the extracted tune(s)
Tune-89530-24CountryDances_1793_Preston.pdf 2217 Portable Data Format
Tune-89530-24CountryDances_1793_Preston.ps 6 PostScript
Tune-89530-24CountryDances_1793_Preston.txt 175 Plain-text file with the extracted tune(s)
Tune-92835-24CountryDances_1793_Preston.abc 175 ABC music file with the extracted tune(s)
Tune-92835-24CountryDances_1793_Preston.ps 6 PostScript
Tune-92835-24CountryDances_1793_Preston.txt 175 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.