Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/CNS/12SelectedCountryDances_1772_Rutherford.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4804-12SelectedCountryDances_1772_Rutherford.ps) >>/Users/jc/w/tmp/Tune-4804-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CNS/12SelectedCountryDances_1772_Rutherford.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-4804-12SelectedCountryDances_1772_Rutherford.abc 175 ABC music file with the extracted tune(s)
Tune-4804-12SelectedCountryDances_1772_Rutherford.ps 6 PostScript
Tune-4804-12SelectedCountryDances_1772_Rutherford.txt 175 Plain-text file with the extracted tune(s)
Tune-4804-get.log 4669 Log file, useful mostly for debugging
Tune-48040-get.log 5512 Log file, useful mostly for debugging
Tune-48041-get.log 4140 Log file, useful mostly for debugging
Tune-48042-get.log 7891 Log file, useful mostly for debugging
Tune-48044-get.log 9635 Log file, useful mostly for debugging
Tune-48046-get.log 4241 Log file, useful mostly for debugging
These files should be available for 24 hours.