pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-97461-Ash_Grove_3.ps) >>/Users/jc/w/tmp/Tune-97461-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/kirby98.fsnet.co.uk/as/Ash_Grove_3.abc

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-97461-Ash_Grove_3.abc 407 ABC music file with the extracted tune(s)
Tune-97461-Ash_Grove_3.ps 33486 PostScript
Tune-97461-Ash_Grove_3.txt 407 Plain-text file with the extracted tune(s)
Tune-97461-get.log 5508 Log file, useful mostly for debugging
These files should be available for 24 hours.