pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20585-498_Castle_down.ps) >>/Users/jc/w/tmp/Tune-20585-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1803/Preston/498_Castle_down.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-20585-498_Castle_down.abc 835 ABC music file with the extracted tune(s)
Tune-20585-498_Castle_down.ps 33815 PostScript
Tune-20585-498_Castle_down.txt 835 Plain-text file with the extracted tune(s)
Tune-20585-get.log 4579 Log file, useful mostly for debugging
These files should be available for 24 hours.