Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1769/ViolaRuth_AmericanSD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9457-ViolaRuth_AmericanSD.ps) >>/Users/jc/w/tmp/Tune-9457-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1769/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_94575.log 136999 Log file, useful mostly for debugging
Tune-9457-10911_Flowers_of_Edinburgh.abc 620 ABC music file with the extracted tune(s)
Tune-9457-10911_Flowers_of_Edinburgh.pdf 16183 Portable Data Format
Tune-9457-10911_Flowers_of_Edinburgh.ps 36931 PostScript
Tune-9457-10911_Flowers_of_Edinburgh.txt 620 Plain-text file with the extracted tune(s)
Tune-9457-ViolaRuth_AmericanSD.abc 157 ABC music file with the extracted tune(s)
Tune-9457-ViolaRuth_AmericanSD.ps 6 PostScript
Tune-9457-ViolaRuth_AmericanSD.txt 157 Plain-text file with the extracted tune(s)
Tune-9457-get.log 16108 Log file, useful mostly for debugging
Tune-94578-21201_Lone_Vale.abc 635 ABC music file with the extracted tune(s)
Tune-94578-21201_Lone_Vale.pdf 17821 Portable Data Format
Tune-94578-21201_Lone_Vale.ps 36149 PostScript
Tune-94578-21201_Lone_Vale.txt 635 Plain-text file with the extracted tune(s)
Tune-94578-get.log 5430 Log file, useful mostly for debugging
Tune-94579-Gow-CSR4-abc2.abc 150 ABC music file with the extracted tune(s)
Tune-94579-Gow-CSR4-abc2.ps 6 PostScript
Tune-94579-Gow-CSR4-abc2.txt 150 Plain-text file with the extracted tune(s)
Tune-94579-get.log 4177 Log file, useful mostly for debugging
These files should be available for 24 hours.