pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-94503-dwok01_3.ps) >>/Users/jc/w/tmp/Tune-94503-get.log 2>&1" returned status 256
http://ifdo.ca/~seymour/runabc/esac/dwok01_3.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
Form_94503.log 844 Log file, useful mostly for debugging
Tune-94503-dwok01_3.abc 233 ABC music file with the extracted tune(s)
Tune-94503-dwok01_3.ps 32712 PostScript
Tune-94503-dwok01_3.txt 233 Plain-text file with the extracted tune(s)
Tune-94503-get.log 4369 Log file, useful mostly for debugging
These files should be available for 24 hours.