pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-36745-AN_AP.ps) >>/Users/jc/w/tmp/Tune-36745-get.log 2>&1" returned status 256
http://www.ibiblio.org/fiddlers/AN_AP.htm

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_36745.log 765 Log file, useful mostly for debugging
Tune-36745-AN_AP.abc 215 ABC music file with the extracted tune(s)
Tune-36745-AN_AP.ps 33159 PostScript
Tune-36745-AN_AP.txt 215 Plain-text file with the extracted tune(s)
Tune-36745-get.log 3985 Log file, useful mostly for debugging
These files should be available for 24 hours.