X:31 not found in http://www.arcelts.com/bbot1/t31.htm
pscmd="(jcabc2ps /Users/jc/w/tmp/Tune-4577-t31.abc -F fmt/pdf_60.fmt +s 0.60 +maxs 2000 )>/Users/jc/w/tmp/Tune-4577-t31.ps 2>>/Users/jc/w/tmp/Tune-4577-get.log" returned status 256.
gifcmd="(ps2gif 512 512 /Users/jc/w/tmp/Tune-4577-t31.ps) >>/Users/jc/w/tmp/Tune-4577-get.log 2>&1" returned status 2816
http://www.arcelts.com/bbot1/t31.htm

Error exit status 2816; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Coll_45776.log 133732 Log file, useful mostly for debugging
Tune-4577-get.log 1122682 Log file, useful mostly for debugging
Tune-4577-t31.abc 0 ABC music file with the extracted tune(s)
Tune-4577-t31.txt 0 Plain-text file with the extracted tune(s)
Tune-45770-get.log 4095 Log file, useful mostly for debugging
Tune-45772-get.log 7494 Log file, useful mostly for debugging
These files should be available for 24 hours.