Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/SliabhLuachroOnParade/ViolaRuth_Pioneer.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8455-ViolaRuth_Pioneer.ps) >>/Users/jc/w/tmp/Tune-8455-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SliabhLuachroOnParade/ViolaRuth_Pioneer.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_84558.log 151929 Log file, useful mostly for debugging
Tune-8455-ViolaRuth_Pioneer.abc 171 ABC music file with the extracted tune(s)
Tune-8455-ViolaRuth_Pioneer.ps 6 PostScript
Tune-8455-ViolaRuth_Pioneer.txt 171 Plain-text file with the extracted tune(s)
Tune-8455-get.log 8526 Log file, useful mostly for debugging
Tune-84551-24CountryDances_1793_Preston.abc 171 ABC music file with the extracted tune(s)
Tune-84551-24CountryDances_1793_Preston.pdf 2217 Portable Data Format
Tune-84551-24CountryDances_1793_Preston.ps 6 PostScript
Tune-84551-24CountryDances_1793_Preston.txt 171 Plain-text file with the extracted tune(s)
Tune-84551-get.log 8994 Log file, useful mostly for debugging
Tune-84552-get.log 4535 Log file, useful mostly for debugging
Tune-84553-get.log 5224 Log file, useful mostly for debugging
Tune-84554-get.log 5319 Log file, useful mostly for debugging
Tune-84556-get.log 4400 Log file, useful mostly for debugging
Tune-84559-get.log 3499 Log file, useful mostly for debugging
These files should be available for 24 hours.