pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-54920-2946.ps) >>/Users/jc/w/tmp/Tune-54920-get.log 2>&1" returned status 256
http://www.thefatlute.eu/rapid/view_song/c/2946

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-54920-2946.abc 3137 ABC music file with the extracted tune(s)
Tune-54920-2946.ps 60709 PostScript
Tune-54920-2946.txt 3137 Plain-text file with the extracted tune(s)
Tune-54920-get.log 16782 Log file, useful mostly for debugging
These files should be available for 24 hours.