pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-76781-LUX.ps) >>/Users/jc/w/tmp/Tune-76781-get.log 2>&1" returned status 256
http://ifdo.ca/~seymour/runabc/esac/LUX.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-76781-LUX.abc 414 ABC music file with the extracted tune(s)
Tune-76781-LUX.ps 34981 PostScript
Tune-76781-LUX.txt 414 Plain-text file with the extracted tune(s)
Tune-76781-get.log 4268 Log file, useful mostly for debugging
These files should be available for 24 hours.