Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book49/24CountryDances_1796_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7555-24CountryDances_1796_Preston.ps) >>/Users/jc/w/tmp/Tune-7555-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book49/24CountryDances_1796_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_75559.log 608212 Log file, useful mostly for debugging
Form_75550.log 896 Log file, useful mostly for debugging
Tune-7555-24CountryDances_1796_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-7555-24CountryDances_1796_Preston.ps 6 PostScript
Tune-7555-24CountryDances_1796_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-7555-get.log 7574 Log file, useful mostly for debugging
Tune-75558-get.log 5213 Log file, useful mostly for debugging
Tune-75559-get.log 1295 Log file, useful mostly for debugging
These files should be available for 24 hours.