Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book45/24CountryDances_1801_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2945-24CountryDances_1801_Preston.ps) >>/Users/jc/w/tmp/Tune-2945-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book45/24CountryDances_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_29457.log 150617 Log file, useful mostly for debugging
Tune-2945-24CountryDances_1801_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-2945-24CountryDances_1801_Preston.ps 6 PostScript
Tune-2945-24CountryDances_1801_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-2945-get.log 4454 Log file, useful mostly for debugging
Tune-29450-get.log 12532 Log file, useful mostly for debugging
Tune-29452-get.log 4969 Log file, useful mostly for debugging
Tune-29454-get.log 9405 Log file, useful mostly for debugging
Tune-29455-get.log 7363 Log file, useful mostly for debugging
Tune-29457-get.log 4334 Log file, useful mostly for debugging
These files should be available for 24 hours.