pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-13181-Mrs_Mary_Printy.ps) >>/Users/jc/w/tmp/Tune-13181-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/thisoldtractor.com/Mrs_Mary_Printy.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_13181.log 2715525 Log file, useful mostly for debugging
Tune-13181-Mrs_Mary_Printy.abc 607 ABC music file with the extracted tune(s)
Tune-13181-Mrs_Mary_Printy.ps 40238 PostScript
Tune-13181-Mrs_Mary_Printy.txt 607 Plain-text file with the extracted tune(s)
Tune-13181-get.log 4650 Log file, useful mostly for debugging
These files should be available for 24 hours.