Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Rare_Small/Button_Whitaker_12ElegantNewDances_1810.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2889-Button_Whitaker_12ElegantNewDances_1810.ps) >>/Users/jc/w/tmp/Tune-2889-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Rare_Small/Button_Whitaker_12ElegantNewDances_1810.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_28896.log 164267 Log file, useful mostly for debugging
Find_28899.log 1379 Log file, useful mostly for debugging
Tune-2889-Button_Whitaker_12ElegantNewDances_1810.abc 182 ABC music file with the extracted tune(s)
Tune-2889-Button_Whitaker_12ElegantNewDances_1810.ps 6 PostScript
Tune-2889-Button_Whitaker_12ElegantNewDances_1810.txt 182 Plain-text file with the extracted tune(s)
Tune-2889-get.log 15998 Log file, useful mostly for debugging
Tune-28890-get.log 8693 Log file, useful mostly for debugging
Tune-28891-get.log 13144 Log file, useful mostly for debugging
Tune-28892-get.log 7326 Log file, useful mostly for debugging
Tune-28893-get.log 4476 Log file, useful mostly for debugging
Tune-28896-get.log 8698 Log file, useful mostly for debugging
These files should be available for 24 hours.