Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book19/24CountryDances_1794_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3317-24CountryDances_1794_Preston.ps) >>/Users/jc/w/tmp/Tune-3317-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book19/24CountryDances_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_33173.log 279210 Log file, useful mostly for debugging
Tune-3317-24CountryDances_1794_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-3317-24CountryDances_1794_Preston.ps 6 PostScript
Tune-3317-24CountryDances_1794_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-3317-get.log 9540 Log file, useful mostly for debugging
Tune-33170-get.log 5445 Log file, useful mostly for debugging
Tune-33172-get.log 3867 Log file, useful mostly for debugging
Tune-33173-get.log 3949 Log file, useful mostly for debugging
Tune-33174-get.log 8091 Log file, useful mostly for debugging
Tune-33175-get.log 5054 Log file, useful mostly for debugging
Tune-33176-get.log 5242 Log file, useful mostly for debugging
Tune-33177-get.log 3922 Log file, useful mostly for debugging
These files should be available for 24 hours.