pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1438-MissShepherdR.ps) >>/Users/jc/w/tmp/Tune-1438-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/tastysoftware.com/abc/MissShepherdR.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
Coll_14383.log 66884 Log file, useful mostly for debugging
Tune-1438-MissShepherdR.abc 347 ABC music file with the extracted tune(s)
Tune-1438-MissShepherdR.ps 35049 PostScript
Tune-1438-MissShepherdR.txt 347 Plain-text file with the extracted tune(s)
Tune-1438-get.log 4348 Log file, useful mostly for debugging
Tune-14380-get.log 1430 Log file, useful mostly for debugging
Tune-14385-get.log 1424 Log file, useful mostly for debugging
These files should be available for 24 hours.