pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17231-new_policeman.ps) >>/Users/jc/w/tmp/Tune-17231-get.log 2>&1" returned status 256
http://www.piper-frank.de/tunebook/trad/abc/new_policeman.txt

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_17231.log 96015 Log file, useful mostly for debugging
Tune-17231-get.log 4508 Log file, useful mostly for debugging
Tune-17231-new_policeman.abc 3758 ABC music file with the extracted tune(s)
Tune-17231-new_policeman.ps 36341 PostScript
Tune-17231-new_policeman.txt 3758 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.