Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book31/24CountryDances_1805_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8454-24CountryDances_1805_Thompson.ps) >>/Users/jc/w/tmp/Tune-8454-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book31/24CountryDances_1805_Thompson.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-8454-24CountryDances_1805_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-8454-24CountryDances_1805_Thompson.ps 6 PostScript
Tune-8454-24CountryDances_1805_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-8454-get.log 12138 Log file, useful mostly for debugging
Tune-84541-get.log 4700 Log file, useful mostly for debugging
Tune-84542-get.log 4977 Log file, useful mostly for debugging
Tune-84543-get.log 4884 Log file, useful mostly for debugging
Tune-84544-get.log 3508 Log file, useful mostly for debugging
Tune-84545-get.log 18829 Log file, useful mostly for debugging
Tune-84547-get.log 4610 Log file, useful mostly for debugging
Tune-84548-get.log 4187 Log file, useful mostly for debugging
Tune-84549-get.log 4355 Log file, useful mostly for debugging
These files should be available for 24 hours.