pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50545-ChansonspourElisabeth.ps) >>/Users/jc/w/tmp/Tune-50545-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/galouvielle.free.fr/vendredi/ChansonspourElisabeth.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_50545.log 737 Log file, useful mostly for debugging
Tune-50545-ChansonspourElisabeth.abc 362 ABC music file with the extracted tune(s)
Tune-50545-ChansonspourElisabeth.ps 33509 PostScript
Tune-50545-ChansonspourElisabeth.txt 362 Plain-text file with the extracted tune(s)
Tune-50545-get.log 4805 Log file, useful mostly for debugging
These files should be available for 24 hours.