pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4149-PeterWhite.ps) >>/Users/jc/w/tmp/Tune-4149-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/PeterWhite.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_41497.log 1963783 Log file, useful mostly for debugging
Tune-4149-PeterWhite.abc 2906 ABC music file with the extracted tune(s)
Tune-4149-PeterWhite.ps 60425 PostScript
Tune-4149-PeterWhite.txt 2906 Plain-text file with the extracted tune(s)
Tune-4149-get.log 4841 Log file, useful mostly for debugging
These files should be available for 24 hours.