pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1194-TremontQuadrilles2.ps) >>/Users/jc/w/tmp/Tune-1194-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CharlesZeuner/TremontQuadrilles/TremontQuadrilles2.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-1194-TremontQuadrilles2.abc 2531 ABC music file with the extracted tune(s)
Tune-1194-TremontQuadrilles2.ps 46703 PostScript
Tune-1194-TremontQuadrilles2.txt 2531 Plain-text file with the extracted tune(s)
Tune-1194-get.log 5704 Log file, useful mostly for debugging
Tune-11943-get.log 3652 Log file, useful mostly for debugging
Tune-11944-get.log 3712 Log file, useful mostly for debugging
Tune-11947-get.log 12844 Log file, useful mostly for debugging
Tune-11949-get.log 9543 Log file, useful mostly for debugging
These files should be available for 24 hours.