Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/TTAC2/24CountryDances_1782_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-26944-24CountryDances_1782_Skillern.ps) >>/Users/jc/w/tmp/Tune-26944-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/TTAC2/24CountryDances_1782_Skillern.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-26944-24CountryDances_1782_Skillern.abc 167 ABC music file with the extracted tune(s)
Tune-26944-24CountryDances_1782_Skillern.ps 6 PostScript
Tune-26944-24CountryDances_1782_Skillern.txt 167 Plain-text file with the extracted tune(s)
Tune-26944-DouglasFavoriteHornpipe.abc 502 ABC music file with the extracted tune(s)
Tune-26944-DouglasFavoriteHornpipe.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-26944-DouglasFavoriteHornpipe.ps 35685 PostScript
Tune-26944-DouglasFavoriteHornpipe.txt 502 Plain-text file with the extracted tune(s)
Tune-26944-get.log 10130 Log file, useful mostly for debugging
These files should be available for 24 hours.