pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-39188-1705-ChiefOneillsVisit.ps) >>/Users/jc/w/tmp/Tune-39188-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/sosyourmom.com/Abc-1701-1800/1705-ChiefOneillsVisit.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_39188.log 254919 Log file, useful mostly for debugging
Tune-39188-1705-ChiefOneillsVisit.abc 484 ABC music file with the extracted tune(s)
Tune-39188-1705-ChiefOneillsVisit.ps 36392 PostScript
Tune-39188-1705-ChiefOneillsVisit.txt 484 Plain-text file with the extracted tune(s)
Tune-39188-get.log 7756 Log file, useful mostly for debugging
These files should be available for 24 hours.