pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-33234-sessionTunes.ps) >>/Users/jc/w/tmp/Tune-33234-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/ceolas.org/sessionTunes.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_33234.log 721 Log file, useful mostly for debugging
Tune-33234-get.log 7590 Log file, useful mostly for debugging
Tune-33234-sessionTunes.abc 273 ABC music file with the extracted tune(s)
Tune-33234-sessionTunes.ps 34526 PostScript
Tune-33234-sessionTunes.txt 273 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.