pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-33957-REVReel.ps) >>/Users/jc/w/tmp/Tune-33957-get.log 2>&1" returned status 256
http://www.campin.me.uk/Embro/Webrelease/Embro/16army/abc/REVReel.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-33957-REVReel.abc 396 ABC music file with the extracted tune(s)
Tune-33957-REVReel.ps 36360 PostScript
Tune-33957-REVReel.txt 396 Plain-text file with the extracted tune(s)
Tune-33957-get.log 8724 Log file, useful mostly for debugging
These files should be available for 24 hours.