pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6995-BrightestAndBest.ps) >>/Users/jc/w/tmp/Tune-6995-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/BrightestAndBest.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_69951.log 284330 Log file, useful mostly for debugging
Coll_69956.log 104466 Log file, useful mostly for debugging
Tune-6995-BrightestAndBest.abc 1474 ABC music file with the extracted tune(s)
Tune-6995-BrightestAndBest.ps 40313 PostScript
Tune-6995-BrightestAndBest.txt 1474 Plain-text file with the extracted tune(s)
Tune-6995-get.log 4508 Log file, useful mostly for debugging
These files should be available for 24 hours.