pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81871-SoundOfHarris1.ps) >>/Users/jc/w/tmp/Tune-81871-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/SoundOfHarris1.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_81871.log 553205 Log file, useful mostly for debugging
Tune-81871-SoundOfHarris1.abc 1255 ABC music file with the extracted tune(s)
Tune-81871-SoundOfHarris1.ps 40223 PostScript
Tune-81871-SoundOfHarris1.txt 1255 Plain-text file with the extracted tune(s)
Tune-81871-get.log 4919 Log file, useful mostly for debugging
These files should be available for 24 hours.