pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-70096-ballad40.ps) >>/Users/jc/w/tmp/Tune-70096-get.log 2>&1" returned status 256
http://ifdo.ca/~seymour/runabc/esac/ballad40.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-70096-ballad40.abc 329 ABC music file with the extracted tune(s)
Tune-70096-ballad40.ps 32950 PostScript
Tune-70096-ballad40.txt 329 Plain-text file with the extracted tune(s)
Tune-70096-get.log 4212 Log file, useful mostly for debugging
These files should be available for 24 hours.