pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6201-tunebook.ps) >>/Users/jc/w/tmp/Tune-6201-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/tunebook.org.uk/tunebook.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_62016.log 68774 Log file, useful mostly for debugging
Form_62010.log 1593 Log file, useful mostly for debugging
Form_62015.log 732 Log file, useful mostly for debugging
Tune-6201-get.log 10374 Log file, useful mostly for debugging
Tune-6201-tunebook.abc 414 ABC music file with the extracted tune(s)
Tune-6201-tunebook.ps 35490 PostScript
Tune-6201-tunebook.txt 414 Plain-text file with the extracted tune(s)
Tune-62010-get.log 5368 Log file, useful mostly for debugging
Tune-62012-get.log 5248 Log file, useful mostly for debugging
Tune-62015-get.log 1407 Log file, useful mostly for debugging
Tune-62016-get.log 3677 Log file, useful mostly for debugging
Tune-62019-get.log 7182 Log file, useful mostly for debugging
These files should be available for 24 hours.