Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MacNab02/ViolaRuth_AmericanSD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17393-ViolaRuth_AmericanSD.ps) >>/Users/jc/w/tmp/Tune-17393-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MacNab02/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
Tune-17393-GoldenBookOfFavoriteSongs1.abc 41077 ABC music file with the extracted tune(s)
Tune-17393-GoldenBookOfFavoriteSongs1.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-17393-GoldenBookOfFavoriteSongs1.ps 239281 PostScript
Tune-17393-GoldenBookOfFavoriteSongs1.txt 41077 Plain-text file with the extracted tune(s)
Tune-17393-ViolaRuth_AmericanSD.abc 161 ABC music file with the extracted tune(s)
Tune-17393-ViolaRuth_AmericanSD.ps 6 PostScript
Tune-17393-ViolaRuth_AmericanSD.txt 161 Plain-text file with the extracted tune(s)
Tune-17393-get.log 30254 Log file, useful mostly for debugging
These files should be available for 24 hours.