pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-85790-OSJ_addendum.ps) >>/Users/jc/w/tmp/Tune-85790-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/SeymourShlien/ottawaslowjam/OSJ_addendum/%424:MARGARETANNROBERTSON.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_85790.log 69044 Log file, useful mostly for debugging
Tune-85790-OSJ_addendum.abc 624 ABC music file with the extracted tune(s)
Tune-85790-OSJ_addendum.ps 36476 PostScript
Tune-85790-OSJ_addendum.txt 624 Plain-text file with the extracted tune(s)
Tune-85790-get.log 5325 Log file, useful mostly for debugging
These files should be available for 24 hours.