pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-99989-5803.ps) >>/Users/jc/w/tmp/Tune-99989-get.log 2>&1" returned status 256
http://www.thefatlute.eu/rapid/view_song/w/5803

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-99989-5803.abc 5400 ABC music file with the extracted tune(s)
Tune-99989-5803.ps 72143 PostScript
Tune-99989-5803.txt 5400 Plain-text file with the extracted tune(s)
Tune-99989-get.log 19122 Log file, useful mostly for debugging
These files should be available for 24 hours.