pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-48872-ofpc.ps) >>/Users/jc/w/tmp/Tune-48872-get.log 2>&1" returned status 256
http://capeirish.com/webabc/working/source.folders/ofpc/ofpc.2/ofpc.2_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_48872.log 257739 Log file, useful mostly for debugging
Tune-48872-get.log 5581 Log file, useful mostly for debugging
Tune-48872-ofpc.abc 278 ABC music file with the extracted tune(s)
Tune-48872-ofpc.ps 35108 PostScript
Tune-48872-ofpc.txt 278 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.