Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/SelectionOfDancesReelsAndWaltzes/12SelectedCountryDances_1772_Rutherford.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6962-12SelectedCountryDances_1772_Rutherford.ps) >>/Users/jc/w/tmp/Tune-6962-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/SelectionOfDancesReelsAndWaltzes/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
Coll_6962.log 652443 Log file, useful mostly for debugging
Coll_69626.log 677734 Log file, useful mostly for debugging
Tune-6962-12SelectedCountryDances_1772_Rutherford.abc 204 ABC music file with the extracted tune(s)
Tune-6962-12SelectedCountryDances_1772_Rutherford.ps 6 PostScript
Tune-6962-12SelectedCountryDances_1772_Rutherford.txt 204 Plain-text file with the extracted tune(s)
Tune-6962-get.log 4843 Log file, useful mostly for debugging
These files should be available for 24 hours.