pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2849-40222_The_New_Opera_Dance.ps) >>/Users/jc/w/tmp/Tune-2849-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/Gow4/40222_The_New_Opera_Dance.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_28491.log 257739 Log file, useful mostly for debugging
Form_28495.log 807 Log file, useful mostly for debugging
Tune-2849-40222_The_New_Opera_Dance.abc 0 ABC music file with the extracted tune(s)
Tune-2849-40222_The_New_Opera_Dance.ps 0 PostScript
Tune-2849-40222_The_New_Opera_Dance.txt 0 Plain-text file with the extracted tune(s)
Tune-2849-get.log 4095 Log file, useful mostly for debugging
Tune-28495-get.log 1667 Log file, useful mostly for debugging
These files should be available for 24 hours.