Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/jpg/Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9554-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.ps) >>/Users/jc/w/tmp/Tune-9554-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/jpg/Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.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-9554-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.abc 186 ABC music file with the extracted tune(s)
Tune-9554-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.ps 6 PostScript
Tune-9554-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.txt 186 Plain-text file with the extracted tune(s)
Tune-9554-get.log 8317 Log file, useful mostly for debugging
Tune-95540-get.log 4350 Log file, useful mostly for debugging
Tune-95541-get.log 12914 Log file, useful mostly for debugging
Tune-95542-get.log 8110 Log file, useful mostly for debugging
Tune-95545-get.log 7533 Log file, useful mostly for debugging
Tune-95546-get.log 10384 Log file, useful mostly for debugging
Tune-95547-get.log 5602 Log file, useful mostly for debugging
Tune-95549-get.log 3656 Log file, useful mostly for debugging
These files should be available for 24 hours.