pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2772-dva0.ps) >>/Users/jc/w/tmp/Tune-2772-get.log 2>&1" returned status 256
http://ifdo.ca/~seymour/runabc/esac/dva0.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-2772-dva0.abc 282 ABC music file with the extracted tune(s)
Tune-2772-dva0.ps 32513 PostScript
Tune-2772-dva0.txt 282 Plain-text file with the extracted tune(s)
Tune-2772-get.log 4327 Log file, useful mostly for debugging
Tune-27721-get.log 1517 Log file, useful mostly for debugging
These files should be available for 24 hours.