pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4289-JohnGrumlie.ps) >>/Users/jc/w/tmp/Tune-4289-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/JohnGrumlie.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_42891.log 987441 Log file, useful mostly for debugging
Coll_42898.log 153123 Log file, useful mostly for debugging
Tune-4289-JohnGrumlie.abc 791 ABC music file with the extracted tune(s)
Tune-4289-JohnGrumlie.ps 35879 PostScript
Tune-4289-JohnGrumlie.txt 791 Plain-text file with the extracted tune(s)
Tune-4289-get.log 4785 Log file, useful mostly for debugging
Tune-42896-get.log 1550 Log file, useful mostly for debugging
These files should be available for 24 hours.