pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8396-hnsp0.ps) >>/Users/jc/w/tmp/Tune-8396-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/!ABCCollections/HenryNorbeckCollection/hnsp0.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_83961.log 263379 Log file, useful mostly for debugging
Coll_83964.log 60173 Log file, useful mostly for debugging
Coll_83968.log 257739 Log file, useful mostly for debugging
Coll_83969.log 129976 Log file, useful mostly for debugging
Find_83964.log 1645 Log file, useful mostly for debugging
Form_83969.log 1657 Log file, useful mostly for debugging
Tune-8396-get.log 4603 Log file, useful mostly for debugging
Tune-8396-hnsp0.abc 485 ABC music file with the extracted tune(s)
Tune-8396-hnsp0.ps 36155 PostScript
Tune-8396-hnsp0.txt 485 Plain-text file with the extracted tune(s)
Tune-83960-get.log 4201 Log file, useful mostly for debugging
Tune-83965-get.log 3259 Log file, useful mostly for debugging
Tune-83967-get.log 4072 Log file, useful mostly for debugging
Tune-83969-get.log 6742 Log file, useful mostly for debugging
These files should be available for 24 hours.