Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/tune/24CountryDances_1810_Button_Whitaker_Elegant.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6103-24CountryDances_1810_Button_Whitaker_Elegant.ps) >>/Users/jc/w/tmp/Tune-6103-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/tune/24CountryDances_1810_Button_Whitaker_Elegant.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_61031.log 459810 Log file, useful mostly for debugging
Coll_61033.log 301610 Log file, useful mostly for debugging
Coll_61035.log 2369833 Log file, useful mostly for debugging
Coll_61037.log 280610 Log file, useful mostly for debugging
Tune-6103-24CountryDances_1810_Button_Whitaker_Elegant.abc 181 ABC music file with the extracted tune(s)
Tune-6103-24CountryDances_1810_Button_Whitaker_Elegant.ps 6 PostScript
Tune-6103-24CountryDances_1810_Button_Whitaker_Elegant.txt 181 Plain-text file with the extracted tune(s)
Tune-6103-get.log 4782 Log file, useful mostly for debugging
Tune-61030-get.log 5397 Log file, useful mostly for debugging
Tune-61032-get.log 4155 Log file, useful mostly for debugging
Tune-61035-get.log 4264 Log file, useful mostly for debugging
Tune-61038-get.log 12165 Log file, useful mostly for debugging
Tune-61039-get.log 4142 Log file, useful mostly for debugging
These files should be available for 24 hours.