pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1878-Mannikossa_G.ps) >>/Users/jc/w/tmp/Tune-1878-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Mannikossa_G.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_18784.log 410780 Log file, useful mostly for debugging
Coll_18785.log 296974 Log file, useful mostly for debugging
Coll_18786.log 406565 Log file, useful mostly for debugging
Tune-1878-Mannikossa_G.abc 780 ABC music file with the extracted tune(s)
Tune-1878-Mannikossa_G.ps 38078 PostScript
Tune-1878-Mannikossa_G.txt 780 Plain-text file with the extracted tune(s)
Tune-1878-get.log 5011 Log file, useful mostly for debugging
Tune-18786-get.log 5441 Log file, useful mostly for debugging
Tune-18788-get.log 4574 Log file, useful mostly for debugging
Tune-18789-get.log 5578 Log file, useful mostly for debugging
These files should be available for 24 hours.