pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2251-oneill_dmoi.ps) >>/Users/jc/w/tmp/Tune-2251-get.log 2>&1" returned status 256
http://music.gordfisch.net/montrealsession/assets/abc/oneill_dmoi.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_22514.log 68504 Log file, useful mostly for debugging
Find_22518.log 1559 Log file, useful mostly for debugging
Form_22511.log 758 Log file, useful mostly for debugging
Form_22515.log 735 Log file, useful mostly for debugging
Tune-2251-get.log 4518 Log file, useful mostly for debugging
Tune-2251-oneill_dmoi.abc 554 ABC music file with the extracted tune(s)
Tune-2251-oneill_dmoi.ps 38867 PostScript
Tune-2251-oneill_dmoi.txt 554 Plain-text file with the extracted tune(s)
Tune-22516-get.log 3762 Log file, useful mostly for debugging
Tune-22518-get.log 8774 Log file, useful mostly for debugging
These files should be available for 24 hours.