pscmd="(jcabc2ps /Users/jc/w/tmp/Tune-72868-Kingsport.abc -F fmt/pdf_60.fmt +s 0.60 +maxs 2000 )>/Users/jc/w/tmp/Tune-72868-Kingsport.ps 2>>/Users/jc/w/tmp/Tune-72868-get.log" returned status 34304.
http://tunearch.org/wiki/Kingsport

Error exit status 34304; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Tune-72868-Kingsport.abc 63214 ABC music file with the extracted tune(s)
Tune-72868-Kingsport.ps 0 PostScript
Tune-72868-Kingsport.txt 63214 Plain-text file with the extracted tune(s)
Tune-72868-get.log 13082 Log file, useful mostly for debugging
These files should be available for 24 hours.