Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1748/ViolaRuth_AmericanSD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5645-ViolaRuth_AmericanSD.ps) >>/Users/jc/w/tmp/Tune-5645-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1748/ViolaRuth_AmericanSD.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_56457.log 298811 Log file, useful mostly for debugging
Tune-5645-ViolaRuth_AmericanSD.abc 157 ABC music file with the extracted tune(s)
Tune-5645-ViolaRuth_AmericanSD.ps 6 PostScript
Tune-5645-ViolaRuth_AmericanSD.txt 157 Plain-text file with the extracted tune(s)
Tune-5645-get.log 4276 Log file, useful mostly for debugging
Tune-56453-Goulding_SSEIFA_v1.abc 155 ABC music file with the extracted tune(s)
Tune-56453-Goulding_SSEIFA_v1.pdf 2217 Portable Data Format
Tune-56453-Goulding_SSEIFA_v1.ps 6 PostScript
Tune-56453-Goulding_SSEIFA_v1.txt 155 Plain-text file with the extracted tune(s)
Tune-56453-get.log 5110 Log file, useful mostly for debugging
Tune-56454-24CountryDances_1813_Button_Whitaker.abc 172 ABC music file with the extracted tune(s)
Tune-56454-24CountryDances_1813_Button_Whitaker.pdf 2217 Portable Data Format
Tune-56454-24CountryDances_1813_Button_Whitaker.ps 6 PostScript
Tune-56454-24CountryDances_1813_Button_Whitaker.txt 172 Plain-text file with the extracted tune(s)
Tune-56454-get.log 7017 Log file, useful mostly for debugging
Tune-56459-24CountryDances_1812_JGray.abc 166 ABC music file with the extracted tune(s)
Tune-56459-24CountryDances_1812_JGray.ps 6 PostScript
Tune-56459-24CountryDances_1812_JGray.txt 166 Plain-text file with the extracted tune(s)
Tune-56459-get.log 4349 Log file, useful mostly for debugging
These files should be available for 24 hours.