Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/_/24CountryDances_1801_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6626-24CountryDances_1801_Preston.ps) >>/Users/jc/w/tmp/Tune-6626-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/_/24CountryDances_1801_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_66260.log 1015520 Log file, useful mostly for debugging
Coll_66268.log 579900 Log file, useful mostly for debugging
Coll_66269.log 278710 Log file, useful mostly for debugging
Tune-6626-24CountryDances_1801_Preston.abc 162 ABC music file with the extracted tune(s)
Tune-6626-24CountryDances_1801_Preston.ps 6 PostScript
Tune-6626-24CountryDances_1801_Preston.txt 162 Plain-text file with the extracted tune(s)
Tune-6626-get.log 4426 Log file, useful mostly for debugging
Tune-66260-get.log 1392 Log file, useful mostly for debugging
Tune-66264-get.log 1392 Log file, useful mostly for debugging
Tune-66266-get.log 5551 Log file, useful mostly for debugging
Tune-66267-get.log 4630 Log file, useful mostly for debugging
Tune-66269-get.log 5720 Log file, useful mostly for debugging
These files should be available for 24 hours.