pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-64315-jigs.ps) >>/Users/jc/w/tmp/Tune-64315-get.log 2>&1" returned status 256
http://www.guitarnut.com/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-64315-get.log 3971 Log file, useful mostly for debugging
Tune-64315-jigs.abc 297 ABC music file with the extracted tune(s)
Tune-64315-jigs.ps 34796 PostScript
Tune-64315-jigs.txt 297 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.