Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1826/24CountryDances_1794_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7852-24CountryDances_1794_Preston.ps) >>/Users/jc/w/tmp/Tune-7852-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1826/24CountryDances_1794_Preston.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_78520.log 451529 Log file, useful mostly for debugging
Coll_78529.log 354580 Log file, useful mostly for debugging
Tune-7852-24CountryDances_1794_Preston.abc 165 ABC music file with the extracted tune(s)
Tune-7852-24CountryDances_1794_Preston.ps 6 PostScript
Tune-7852-24CountryDances_1794_Preston.txt 165 Plain-text file with the extracted tune(s)
Tune-7852-get.log 4442 Log file, useful mostly for debugging
Tune-78521-get.log 1722 Log file, useful mostly for debugging
Tune-78522-get.log 6711 Log file, useful mostly for debugging
Tune-78525-get.log 5679 Log file, useful mostly for debugging
Tune-78527-get.log 8395 Log file, useful mostly for debugging
Tune-78528-get.log 11303 Log file, useful mostly for debugging
These files should be available for 24 hours.