pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9292-BENNET.ps) >>/Users/jc/w/tmp/Tune-9292-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/Bennet/BENNET(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
Coll_92921.log 141597 Log file, useful mostly for debugging
Coll_92922.log 285939 Log file, useful mostly for debugging
Tune-9292-BENNET.abc 851 ABC music file with the extracted tune(s)
Tune-9292-BENNET.ps 38876 PostScript
Tune-9292-BENNET.txt 851 Plain-text file with the extracted tune(s)
Tune-9292-get.log 4308 Log file, useful mostly for debugging
Tune-92928-get.log 1374 Log file, useful mostly for debugging
These files should be available for 24 hours.