pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8146-Calton2.ps) >>/Users/jc/w/tmp/Tune-8146-get.log 2>&1" returned status 256
http://www.campin.me.uk/Embro/Webrelease/Embro/04places/abc/Calton2.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-8146-Calton2.abc 420 ABC music file with the extracted tune(s)
Tune-8146-Calton2.ps 34822 PostScript
Tune-8146-Calton2.txt 420 Plain-text file with the extracted tune(s)
Tune-8146-get.log 4840 Log file, useful mostly for debugging
These files should be available for 24 hours.