Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/3D2006/24CountryDances_1818_Button_Whitaker.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4796-24CountryDances_1818_Button_Whitaker.ps) >>/Users/jc/w/tmp/Tune-4796-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/3D2006/24CountryDances_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
Coll_4796.log 256566 Log file, useful mostly for debugging
Find_47961.log 1253 Log file, useful mostly for debugging
Tune-4796-24CountryDances_1818_Button_Whitaker.abc 175 ABC music file with the extracted tune(s)
Tune-4796-24CountryDances_1818_Button_Whitaker.ps 6 PostScript
Tune-4796-24CountryDances_1818_Button_Whitaker.txt 175 Plain-text file with the extracted tune(s)
Tune-4796-get.log 4624 Log file, useful mostly for debugging
Tune-47960-397_Buonapartes_Defeat.abc 873 ABC music file with the extracted tune(s)
Tune-47960-397_Buonapartes_Defeat.ps 35418 PostScript
Tune-47960-397_Buonapartes_Defeat.txt 873 Plain-text file with the extracted tune(s)
Tune-47960-get.log 8121 Log file, useful mostly for debugging
Tune-47961-get.log 12263 Log file, useful mostly for debugging
Tune-47962-get.log 3500 Log file, useful mostly for debugging
Tune-47963-get.log 8898 Log file, useful mostly for debugging
Tune-47964-get.log 4576 Log file, useful mostly for debugging
Tune-47966-get.log 11755 Log file, useful mostly for debugging
Tune-47967-get.log 4045 Log file, useful mostly for debugging
Tune-47968-get.log 8396 Log file, useful mostly for debugging
Tune-47969-get.log 8425 Log file, useful mostly for debugging
These files should be available for 24 hours.