pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-83959-0811-0899_dp.ps) >>/Users/jc/w/tmp/Tune-83959-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/oneills/1850/F/0811-0899_dp.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
Form_83959.log 710 Log file, useful mostly for debugging
Tune-83959-0811-0899_dp.abc 292 ABC music file with the extracted tune(s)
Tune-83959-0811-0899_dp.ps 34461 PostScript
Tune-83959-0811-0899_dp.txt 292 Plain-text file with the extracted tune(s)
Tune-83959-get.log 4381 Log file, useful mostly for debugging
These files should be available for 24 hours.