pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6959-ballad40.ps) >>/Users/jc/w/tmp/Tune-6959-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
Coll_69592.log 148252 Log file, useful mostly for debugging
Form_6959.log 848 Log file, useful mostly for debugging
Form_69593.log 885 Log file, useful mostly for debugging
Tune-6959-ballad40.abc 300 ABC music file with the extracted tune(s)
Tune-6959-ballad40.ps 33580 PostScript
Tune-6959-ballad40.txt 300 Plain-text file with the extracted tune(s)
Tune-6959-get.log 4288 Log file, useful mostly for debugging
Tune-69590-get.log 5201 Log file, useful mostly for debugging
Tune-69593-get.log 7614 Log file, useful mostly for debugging
Tune-69594-get.log 3179 Log file, useful mostly for debugging
Tune-69597-get.log 3698 Log file, useful mostly for debugging
These files should be available for 24 hours.