pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2160-Legacy0.ps) >>/Users/jc/w/tmp/Tune-2160-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/Legacy0.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_21600.log 292760 Log file, useful mostly for debugging
Coll_21606.log 281520 Log file, useful mostly for debugging
Coll_21609.log 284330 Log file, useful mostly for debugging
Tune-2160-Legacy0.abc 445 ABC music file with the extracted tune(s)
Tune-2160-Legacy0.ps 33695 PostScript
Tune-2160-Legacy0.txt 445 Plain-text file with the extracted tune(s)
Tune-2160-get.log 8847 Log file, useful mostly for debugging
Tune-21605-get.log 1386 Log file, useful mostly for debugging
Tune-21609-get.log 1572 Log file, useful mostly for debugging
These files should be available for 24 hours.