pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5194-more_Tunes.ps) >>/Users/jc/w/tmp/Tune-5194-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/ceolas.org/more_Tunes.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_51940.log 16384 Log file, useful mostly for debugging
Coll_51943.log 256329 Log file, useful mostly for debugging
Form_51945.log 849 Log file, useful mostly for debugging
Tune-5194-get.log 4397 Log file, useful mostly for debugging
Tune-5194-more_Tunes.abc 263 ABC music file with the extracted tune(s)
Tune-5194-more_Tunes.ps 36601 PostScript
Tune-5194-more_Tunes.txt 263 Plain-text file with the extracted tune(s)
Tune-51942-get.log 1389 Log file, useful mostly for debugging
Tune-51943-get.log 8177 Log file, useful mostly for debugging
Tune-51948-get.log 9833 Log file, useful mostly for debugging
These files should be available for 24 hours.