pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7470-George_Meikle.ps) >>/Users/jc/w/tmp/Tune-7470-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/George_Meikle.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_74705.log 250609 Log file, useful mostly for debugging
Coll_74708.log 524585 Log file, useful mostly for debugging
Tune-7470-George_Meikle.abc 40576 ABC music file with the extracted tune(s)
Tune-7470-George_Meikle.ps 353138 PostScript
Tune-7470-George_Meikle.txt 40576 Plain-text file with the extracted tune(s)
Tune-7470-get.log 28713 Log file, useful mostly for debugging
Tune-74704-get.log 1807 Log file, useful mostly for debugging
Tune-74705-get.log 3024 Log file, useful mostly for debugging
Tune-74708-get.log 7196 Log file, useful mostly for debugging
These files should be available for 24 hours.