pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50008-mfabc.ps) >>/Users/jc/w/tmp/Tune-50008-get.log 2>&1" returned status 256
http://www.orpheusweb.co.uk/gatherer/scottish/mfi/mfabc.html

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-50008-get.log 6048 Log file, useful mostly for debugging
Tune-50008-mfabc.abc 305 ABC music file with the extracted tune(s)
Tune-50008-mfabc.ps 35779 PostScript
Tune-50008-mfabc.txt 305 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.