pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-13150-ofhc_ABC.ps) >>/Users/jc/w/tmp/Tune-13150-get.log 2>&1" returned status 256
http://capeirish.com/webabc/working/source.folders/ofhc/ofhc_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-13150-get.log 4473 Log file, useful mostly for debugging
Tune-13150-ofhc_ABC.abc 480 ABC music file with the extracted tune(s)
Tune-13150-ofhc_ABC.ps 38705 PostScript
Tune-13150-ofhc_ABC.txt 480 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.