pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7167-FyNayPritheeJohn.ps) >>/Users/jc/w/tmp/Tune-7167-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/FyNayPritheeJohn.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_71676.log 468210 Log file, useful mostly for debugging
Coll_71678.log 461209 Log file, useful mostly for debugging
Tune-7167-FyNayPritheeJohn.abc 308 ABC music file with the extracted tune(s)
Tune-7167-FyNayPritheeJohn.ps 33196 PostScript
Tune-7167-FyNayPritheeJohn.txt 308 Plain-text file with the extracted tune(s)
Tune-7167-get.log 7830 Log file, useful mostly for debugging
Tune-71670-get.log 4606 Log file, useful mostly for debugging
Tune-71673-get.log 5494 Log file, useful mostly for debugging
Tune-71675-get.log 4144 Log file, useful mostly for debugging
Tune-71676-get.log 4432 Log file, useful mostly for debugging
These files should be available for 24 hours.