pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7253-09272_WHO_WINS.ps) >>/Users/jc/w/tmp/Tune-7253-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Button_Whitaker/SelectionOfDancesReelsAndWaltzes/09272_WHO_WINS.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_7253.log 133732 Log file, useful mostly for debugging
Coll_72530.log 144017 Log file, useful mostly for debugging
Coll_72537.log 139177 Log file, useful mostly for debugging
Tune-7253-09272_WHO_WINS.abc 1377 ABC music file with the extracted tune(s)
Tune-7253-09272_WHO_WINS.ps 37767 PostScript
Tune-7253-09272_WHO_WINS.txt 1377 Plain-text file with the extracted tune(s)
Tune-7253-get.log 4625 Log file, useful mostly for debugging
Tune-72530-0004_Title-001.eps 31799 Encapsulated PostScript, for inclusion in PS files, HTML pages, etc.
Tune-72530-0004_Title.abc 666 ABC music file with the extracted tune(s)
Tune-72530-0004_Title.txt 666 Plain-text file with the extracted tune(s)
Tune-72530-get.log 3328 Log file, useful mostly for debugging
Tune-72536-get.log 3416 Log file, useful mostly for debugging
Tune-72538-get.log 2915 Log file, useful mostly for debugging
These files should be available for 24 hours.