pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-35449-Reekie.ps) >>/Users/jc/w/tmp/Tune-35449-get.log 2>&1" returned status 256
http://www.campin.me.uk/Embro/Webrelease/Embro/18misc/abc/Reekie.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
Coll_35449.log 139177 Log file, useful mostly for debugging
Form_35449.log 1695 Log file, useful mostly for debugging
Tune-35449-Reekie.abc 467 ABC music file with the extracted tune(s)
Tune-35449-Reekie.ps 35499 PostScript
Tune-35449-Reekie.txt 467 Plain-text file with the extracted tune(s)
Tune-35449-get.log 4440 Log file, useful mostly for debugging
These files should be available for 24 hours.