pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9692-nfid_ABC.ps) >>/Users/jc/w/tmp/Tune-9692-get.log 2>&1" returned status 256
http://www.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
Coll_96920.log 144622 Log file, useful mostly for debugging
Coll_96927.log 138572 Log file, useful mostly for debugging
Tune-9692-get.log 8455 Log file, useful mostly for debugging
Tune-9692-nfid_ABC.abc 542 ABC music file with the extracted tune(s)
Tune-9692-nfid_ABC.ps 40977 PostScript
Tune-9692-nfid_ABC.txt 542 Plain-text file with the extracted tune(s)
Tune-96920-get.log 0 Log file, useful mostly for debugging
Tune-96921-get.log 3636 Log file, useful mostly for debugging
Tune-96926-get.log 6060 Log file, useful mostly for debugging
Tune-96927-1748_TDavis-001.svg 24634 Scalable Vector Graphics format
Tune-96927-1748_TDavis.abc 1416 ABC music file with the extracted tune(s)
Tune-96927-1748_TDavis.txt 1416 Plain-text file with the extracted tune(s)
Tune-96927-get.log 3849 Log file, useful mostly for debugging
Tune-96928-get.log 2842 Log file, useful mostly for debugging
These files should be available for 24 hours.