pscmd="(jcabc2ps /Users/jc/w/tmp/Tune-9899-dmwc_ABC.abc -F fmt/pdf_60.fmt +s 0.60 +maxs 2000 )>/Users/jc/w/tmp/Tune-9899-dmwc_ABC.ps 2>>/Users/jc/w/tmp/Tune-9899-get.log" returned status 256.
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9899-dmwc_ABC.ps) >>/Users/jc/w/tmp/Tune-9899-get.log 2>&1" returned status 256
http://capeirish.com/webabc/working/source.folders/dmwc/dmwc_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_98991.log 130528 Log file, useful mostly for debugging
Form_98993.log 752 Log file, useful mostly for debugging
Form_98997.log 771 Log file, useful mostly for debugging
Tune-9899-dmwc_ABC.abc 0 ABC music file with the extracted tune(s)
Tune-9899-get.log 4079 Log file, useful mostly for debugging
Tune-98990-get.log 4128 Log file, useful mostly for debugging
Tune-98992-get.log 12379 Log file, useful mostly for debugging
Tune-98995-get.log 3349 Log file, useful mostly for debugging
Tune-98999-get.log 3878 Log file, useful mostly for debugging
These files should be available for 24 hours.