pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-523-alfhorn.ps) >>/Users/jc/w/tmp/Tune-523-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/!ABCCollections/AlWarnockCollection/alfhorn.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_52327.log 142202 Log file, useful mostly for debugging
Coll_52336.log 145227 Log file, useful mostly for debugging
Coll_52361.log 263379 Log file, useful mostly for debugging
Coll_52385.log 133127 Log file, useful mostly for debugging
Coll_52396.log 260559 Log file, useful mostly for debugging
Coll_52398.log 142202 Log file, useful mostly for debugging
Find_52335.log 1453 Log file, useful mostly for debugging
Find_52361.log 1502 Log file, useful mostly for debugging
Find_52397.log 1509 Log file, useful mostly for debugging
Form_52311.log 855 Log file, useful mostly for debugging
Form_52353.log 845 Log file, useful mostly for debugging
Form_52365.log 829 Log file, useful mostly for debugging
Form_52378.log 852 Log file, useful mostly for debugging
Tune-523-alfhorn.abc 259 ABC music file with the extracted tune(s)
Tune-523-alfhorn.ps 35522 PostScript
Tune-523-alfhorn.txt 259 Plain-text file with the extracted tune(s)
Tune-523-get.log 4460 Log file, useful mostly for debugging
Tune-52317-get.log 3175 Log file, useful mostly for debugging
Tune-52338-get.log 3246 Log file, useful mostly for debugging
Tune-52345-get.log 3289 Log file, useful mostly for debugging
Tune-52351-get.log 4005 Log file, useful mostly for debugging
Tune-52360-get.log 4888 Log file, useful mostly for debugging
Tune-52371-get.log 3163 Log file, useful mostly for debugging
Tune-52390-get.log 3838 Log file, useful mostly for debugging
These files should be available for 24 hours.