pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20156-Craig.ps) >>/Users/jc/w/tmp/Tune-20156-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/Craigs/Craig'sEmpireViolinColl(12-4-16).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-20156-Craig.abc 40 ABC music file with the extracted tune(s)
Tune-20156-Craig.ps 30834 PostScript
Tune-20156-Craig.txt 40 Plain-text file with the extracted tune(s)
Tune-20156-get.log 13732 Log file, useful mostly for debugging
These files should be available for 24 hours.