Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1826/24CountryDances_1780_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1791-24CountryDances_1780_Skillern.ps) >>/Users/jc/w/tmp/Tune-1791-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1826/24CountryDances_1780_Skillern.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_17910.log 268876 Log file, useful mostly for debugging
Coll_17917.log 402350 Log file, useful mostly for debugging
Tune-1791-24CountryDances_1780_Skillern.abc 166 ABC music file with the extracted tune(s)
Tune-1791-24CountryDances_1780_Skillern.ps 6 PostScript
Tune-1791-24CountryDances_1780_Skillern.txt 166 Plain-text file with the extracted tune(s)
Tune-1791-get.log 11402 Log file, useful mostly for debugging
Tune-17911-get.log 5551 Log file, useful mostly for debugging
Tune-95465-24CountryDances_1791_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-95465-24CountryDances_1791_Thompson.ps 6 PostScript
Tune-95465-24CountryDances_1791_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-96184-24CountryDances_1791_Thompson.abc 165 ABC music file with the extracted tune(s)
Tune-96184-24CountryDances_1791_Thompson.ps 6 PostScript
Tune-96184-24CountryDances_1791_Thompson.txt 165 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.