pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21380-___.ps) >>/Users/jc/w/tmp/Tune-21380-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Finland/Tikkuristi-D,G-16-2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-21380-___.abc 595 ABC music file with the extracted tune(s)
Tune-21380-___.ps 35442 PostScript
Tune-21380-___.txt 595 Plain-text file with the extracted tune(s)
Tune-21380-get.log 4511 Log file, useful mostly for debugging
These files should be available for 24 hours.