Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MM4/Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9620-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.ps) >>/Users/jc/w/tmp/Tune-9620-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MM4/Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.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-9620-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.abc 186 ABC music file with the extracted tune(s)
Tune-9620-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.ps 6 PostScript
Tune-9620-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.txt 186 Plain-text file with the extracted tune(s)
Tune-9620-get.log 13928 Log file, useful mostly for debugging
Tune-96200-get.log 53040 Log file, useful mostly for debugging
Tune-96203-get.log 8901 Log file, useful mostly for debugging
Tune-96205-JamesJohnson_ScotsMusicalMuseumV5-V2.abc 179 ABC music file with the extracted tune(s)
Tune-96205-JamesJohnson_ScotsMusicalMuseumV5-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-96205-get.log 8427 Log file, useful mostly for debugging
Tune-96206-get.log 22916 Log file, useful mostly for debugging
Tune-96208-get.log 3598 Log file, useful mostly for debugging
Tune-96209-get.log 4670 Log file, useful mostly for debugging
These files should be available for 24 hours.