pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2677-nfid_ABC.ps) >>/Users/jc/w/tmp/Tune-2677-get.log 2>&1" returned status 256
http://capeirish.com/webabc/working/source.folders/nfid/nfid_ABC.txt

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-2677-get.log 5029 Log file, useful mostly for debugging
Tune-2677-nfid_ABC.abc 465 ABC music file with the extracted tune(s)
Tune-2677-nfid_ABC.ps 37649 PostScript
Tune-2677-nfid_ABC.txt 465 Plain-text file with the extracted tune(s)
Tune-26774-get.log 3073 Log file, useful mostly for debugging
Tune-26775-get.log 1777 Log file, useful mostly for debugging
Tune-26777-get.log 3143 Log file, useful mostly for debugging
These files should be available for 24 hours.