pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6490-oneill_moi.ps) >>/Users/jc/w/tmp/Tune-6490-get.log 2>&1" returned status 256
http://music.gordfisch.net/montrealsession/assets/abc/oneill_moi.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
Find_64908.log 1843 Log file, useful mostly for debugging
Find_64909.log 1347 Log file, useful mostly for debugging
Form_6490.log 874 Log file, useful mostly for debugging
Form_64902.log 827 Log file, useful mostly for debugging
Tune-6490-get.log 4428 Log file, useful mostly for debugging
Tune-6490-oneill_moi.abc 410 ABC music file with the extracted tune(s)
Tune-6490-oneill_moi.ps 34838 PostScript
Tune-6490-oneill_moi.txt 410 Plain-text file with the extracted tune(s)
Tune-64904-get.log 213551 Log file, useful mostly for debugging
Tune-64907-get.log 3221 Log file, useful mostly for debugging
Tune-64908-get.log 3160 Log file, useful mostly for debugging
These files should be available for 24 hours.