pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2959-JeffersonAndLiberty_Am_2.ps) >>/Users/jc/w/tmp/Tune-2959-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/jig/JeffersonAndLiberty_Am_2.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_29595.log 139177 Log file, useful mostly for debugging
Coll_29599.log 1066906 Log file, useful mostly for debugging
Form_29593.log 836 Log file, useful mostly for debugging
Form_29597.log 850 Log file, useful mostly for debugging
Form_29599.log 887 Log file, useful mostly for debugging
Tune-2959-JeffersonAndLiberty_Am_2.abc 615 ABC music file with the extracted tune(s)
Tune-2959-JeffersonAndLiberty_Am_2.ps 34247 PostScript
Tune-2959-JeffersonAndLiberty_Am_2.txt 615 Plain-text file with the extracted tune(s)
Tune-2959-get.log 4550 Log file, useful mostly for debugging
Tune-29591-get.log 67478 Log file, useful mostly for debugging
These files should be available for 24 hours.