pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-40810-LordRosslynsFancy0.ps) >>/Users/jc/w/tmp/Tune-40810-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/LordRosslynsFancy0.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_40810.log 312811 Log file, useful mostly for debugging
Tune-40810-LordRosslynsFancy0.abc 1867 ABC music file with the extracted tune(s)
Tune-40810-LordRosslynsFancy0.ps 46131 PostScript
Tune-40810-LordRosslynsFancy0.txt 1867 Plain-text file with the extracted tune(s)
Tune-40810-get.log 5063 Log file, useful mostly for debugging
These files should be available for 24 hours.