Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/PS/24FavouriteDances_1779_Straight.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1819-24FavouriteDances_1779_Straight.ps) >>/Users/jc/w/tmp/Tune-1819-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/PS/24FavouriteDances_1779_Straight.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-1819-24FavouriteDances_1779_Straight.abc 166 ABC music file with the extracted tune(s)
Tune-1819-24FavouriteDances_1779_Straight.ps 6 PostScript
Tune-1819-24FavouriteDances_1779_Straight.txt 166 Plain-text file with the extracted tune(s)
Tune-1819-get.log 10093 Log file, useful mostly for debugging
Tune-85303-Tune-1819-V4.abc 164 ABC music file with the extracted tune(s)
Tune-85303-Tune-1819-V4.ps 6 PostScript
Tune-85303-Tune-1819-V4.txt 164 Plain-text file with the extracted tune(s)
Tune-88967-Tune-1819-V4.abc 164 ABC music file with the extracted tune(s)
Tune-88967-Tune-1819-V4.txt 164 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.