pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-46746-jigs.ps) >>/Users/jc/w/tmp/Tune-46746-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/perun.hscs.wmin.ac.uk/~jra/NMD/jigs.txt

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-46746-get.log 4266 Log file, useful mostly for debugging
Tune-46746-jigs.abc 295 ABC music file with the extracted tune(s)
Tune-46746-jigs.ps 35205 PostScript
Tune-46746-jigs.txt 295 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.