midicmd="abc2midi /Users/jc/w/tmp/Tune-66881-godrestyeMS2.abc -v -o /Users/jc/w/tmp/Tune-66881-godrestyeMS2.midi >>/Users/jc/w/tmp/Tune-66881-get.log 2>&1" returned status 256.

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Tune-66881-get.log 3516 Log file, useful mostly for debugging
Tune-66881-godrestyeMS2.abc 681 ABC music file with the extracted tune(s)
Tune-66881-godrestyeMS2.malt 0 Musical Instrument Digital Interface, alternate name for midi format
Tune-66881-godrestyeMS2.mid 0 Musical Instrument Digital interface, shortened name for midi format
Tune-66881-godrestyeMS2.midi 0 Musical Instrument Digital Interface, electronic version of the tune(s)
Tune-66881-godrestyeMS2.txt 681 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.