pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6404-8333.ps) >>/Users/jc/w/tmp/Tune-6404-get.log 2>&1" returned status 256
http://www.thefatlute.eu/rapid/view_song/h/8333

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-6404-8333.abc 1216 ABC music file with the extracted tune(s)
Tune-6404-8333.ps 38055 PostScript
Tune-6404-8333.txt 1216 Plain-text file with the extracted tune(s)
Tune-6404-get.log 13393 Log file, useful mostly for debugging
Tune-64044-get.log 7402 Log file, useful mostly for debugging
Tune-64046-get.log 5846 Log file, useful mostly for debugging
Tune-64048-get.log 8419 Log file, useful mostly for debugging
These files should be available for 24 hours.