pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6656-HoleInTheWall_2.ps) >>/Users/jc/w/tmp/Tune-6656-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/England/HoleInTheWall_2.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_66563.log 285735 Log file, useful mostly for debugging
Coll_66565.log 284330 Log file, useful mostly for debugging
Tune-6656-HoleInTheWall_2.abc 1592 ABC music file with the extracted tune(s)
Tune-6656-HoleInTheWall_2.ps 45832 PostScript
Tune-6656-HoleInTheWall_2.txt 1592 Plain-text file with the extracted tune(s)
Tune-6656-get.log 4474 Log file, useful mostly for debugging
Tune-66564-get.log 1493 Log file, useful mostly for debugging
Tune-66569-get.log 1473 Log file, useful mostly for debugging
These files should be available for 24 hours.