pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-89568-Dancing_Bear-Em-32-2.ps) >>/Users/jc/w/tmp/Tune-89568-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/Dancing_Bear-Em-32-2.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-89568-Dancing_Bear-Em-32-2.abc 804 ABC music file with the extracted tune(s)
Tune-89568-Dancing_Bear-Em-32-2.ps 34817 PostScript
Tune-89568-Dancing_Bear-Em-32-2.txt 804 Plain-text file with the extracted tune(s)
Tune-89568-get.log 4712 Log file, useful mostly for debugging
These files should be available for 24 hours.