Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Kerr_MM/Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67970-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.ps) >>/Users/jc/w/tmp/Tune-67970-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr_MM/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
Coll_67970.log 915156 Log file, useful mostly for debugging
Tune-67970-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.abc 190 ABC music file with the extracted tune(s)
Tune-67970-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.ps 6 PostScript
Tune-67970-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_1.txt 190 Plain-text file with the extracted tune(s)
Tune-67970-get.log 4939 Log file, useful mostly for debugging
These files should be available for 24 hours.