pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4976-Ury_Water_10.ps) >>/Users/jc/w/tmp/Tune-4976-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CaledonianCountryDances/cache/Ury_Water_10.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_49761.log 341503 Log file, useful mostly for debugging
Coll_49768.log 68234 Log file, useful mostly for debugging
Tune-4976-Ury_Water_10.abc 657 ABC music file with the extracted tune(s)
Tune-4976-Ury_Water_10.ps 38751 PostScript
Tune-4976-Ury_Water_10.txt 657 Plain-text file with the extracted tune(s)
Tune-4976-get.log 4444 Log file, useful mostly for debugging
Tune-49760-get.log 4279 Log file, useful mostly for debugging
These files should be available for 24 hours.