pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-74416-DonnasWaltz.ps) >>/Users/jc/w/tmp/Tune-74416-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/contrib/Tunes/DonnasWaltz.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_74416.log 989020 Log file, useful mostly for debugging
Tune-74416-DonnasWaltz.abc 488 ABC music file with the extracted tune(s)
Tune-74416-DonnasWaltz.ps 41525 PostScript
Tune-74416-DonnasWaltz.txt 488 Plain-text file with the extracted tune(s)
Tune-74416-get.log 7178 Log file, useful mostly for debugging
These files should be available for 24 hours.