pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7571-Shottish02.ps) >>/Users/jc/w/tmp/Tune-7571-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Shottish02.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_75717.log 514750 Log file, useful mostly for debugging
Tune-7571-Shottish02.abc 503 ABC music file with the extracted tune(s)
Tune-7571-Shottish02.ps 36440 PostScript
Tune-7571-Shottish02.txt 503 Plain-text file with the extracted tune(s)
Tune-7571-get.log 4403 Log file, useful mostly for debugging
These files should be available for 24 hours.