pscmd="(jcabc2ps /Users/jc/w/tmp/Tune-21296-Scotch_Mary.abc -F fmt/pdf_60.fmt +s 0.60 +maxs 2000 )>/Users/jc/w/tmp/Tune-21296-Scotch_Mary.ps 2>>/Users/jc/w/tmp/Tune-21296-get.log" returned status 34816.
http://tradtune.com/620037/Scotch_Mary.htm

Error exit status 34816; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Tune-21296-Scotch_Mary.abc 379 ABC music file with the extracted tune(s)
Tune-21296-Scotch_Mary.ps 30543 PostScript
Tune-21296-Scotch_Mary.txt 379 Plain-text file with the extracted tune(s)
Tune-21296-get.log 4252 Log file, useful mostly for debugging
These files should be available for 24 hours.