Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Graded1/24CountryDances_1802_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-94234-24CountryDances_1802_Thompson.ps) >>/Users/jc/w/tmp/Tune-94234-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Graded1/24CountryDances_1802_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-94234-24CountryDances_1802_Thompson.abc 169 ABC music file with the extracted tune(s)
Tune-94234-24CountryDances_1802_Thompson.ps 6 PostScript
Tune-94234-24CountryDances_1802_Thompson.txt 169 Plain-text file with the extracted tune(s)
Tune-94234-JamesJohnson_ScotsMusicalMuseumV4-V1.abc 183 ABC music file with the extracted tune(s)
Tune-94234-JamesJohnson_ScotsMusicalMuseumV4-V1.pdf 2217 Portable Data Format
Tune-94234-JamesJohnson_ScotsMusicalMuseumV4-V1.ps 6 PostScript
Tune-94234-JamesJohnson_ScotsMusicalMuseumV4-V1.txt 183 Plain-text file with the extracted tune(s)
Tune-94234-get.log 14395 Log file, useful mostly for debugging
These files should be available for 24 hours.