pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2170-sessionTunesII.ps) >>/Users/jc/w/tmp/Tune-2170-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/ceolas.org/sessionTunesII.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_21706.log 63104 Log file, useful mostly for debugging
Coll_21707.log 362535 Log file, useful mostly for debugging
Coll_21709.log 63644 Log file, useful mostly for debugging
Find_21700.log 1588 Log file, useful mostly for debugging
Form_21706.log 759 Log file, useful mostly for debugging
Sess-21701.log 2348989 Log file, useful mostly for debugging
Tune-2170-get.log 4812 Log file, useful mostly for debugging
Tune-2170-sessionTunesII.abc 245 ABC music file with the extracted tune(s)
Tune-2170-sessionTunesII.ps 34841 PostScript
Tune-2170-sessionTunesII.txt 245 Plain-text file with the extracted tune(s)
Tune-21702-get.log 3018 Log file, useful mostly for debugging
Tune-21705-get.log 7797 Log file, useful mostly for debugging
Tune-21707-get.log 3878 Log file, useful mostly for debugging
Tune-21708-get.log 30709 Log file, useful mostly for debugging
Tune-21709-get.log 7934 Log file, useful mostly for debugging
These files should be available for 24 hours.