pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-79548-dubj.ps) >>/Users/jc/w/tmp/Tune-79548-get.log 2>&1" returned status 256
http://users.argonet.co.uk/users/gatherer/scottish/abc3/dubj.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
Tune-79548-dubj.abc 231 ABC music file with the extracted tune(s)
Tune-79548-dubj.ps 34917 PostScript
Tune-79548-dubj.txt 231 Plain-text file with the extracted tune(s)
Tune-79548-get.log 4269 Log file, useful mostly for debugging
These files should be available for 24 hours.