Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book19/24CountryDances_1771_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4436-24CountryDances_1771_Thompson.ps) >>/Users/jc/w/tmp/Tune-4436-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book19/24CountryDances_1771_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-4436-24CountryDances_1771_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-4436-24CountryDances_1771_Thompson.ps 6 PostScript
Tune-4436-24CountryDances_1771_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-4436-get.log 13556 Log file, useful mostly for debugging
Tune-44360-get.log 8076 Log file, useful mostly for debugging
Tune-44362-get.log 4954 Log file, useful mostly for debugging
Tune-44363-get.log 6605 Log file, useful mostly for debugging
Tune-44364-get.log 5640 Log file, useful mostly for debugging
Tune-44365-get.log 11380 Log file, useful mostly for debugging
Tune-44367-get.log 9155 Log file, useful mostly for debugging
Tune-44368-get.log 7482 Log file, useful mostly for debugging
These files should be available for 24 hours.