pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6734-DickGossipsR3.ps) >>/Users/jc/w/tmp/Tune-6734-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/r32/DickGossipsR3.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_67344.log 268841 Log file, useful mostly for debugging
Coll_67346.log 288306 Log file, useful mostly for debugging
Form_67343.log 760 Log file, useful mostly for debugging
Tune-6734-DickGossipsR3.abc 812 ABC music file with the extracted tune(s)
Tune-6734-DickGossipsR3.ps 35837 PostScript
Tune-6734-DickGossipsR3.txt 812 Plain-text file with the extracted tune(s)
Tune-6734-get.log 4612 Log file, useful mostly for debugging
Tune-67349-get.log 3594 Log file, useful mostly for debugging
These files should be available for 24 hours.