pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-61751-cre.ps) >>/Users/jc/w/tmp/Tune-61751-get.log 2>&1" returned status 256
http://capeirish.com/webabc/working/source.folders/cre/cre.4/cre.4_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-61751-cre.abc 316 ABC music file with the extracted tune(s)
Tune-61751-cre.ps 33938 PostScript
Tune-61751-cre.txt 316 Plain-text file with the extracted tune(s)
Tune-61751-get.log 10481 Log file, useful mostly for debugging
These files should be available for 24 hours.