pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3068-Highland_Laddy.ps) >>/Users/jc/w/tmp/Tune-3068-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CCD/Highland_Laddy.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_30681.log 285736 Log file, useful mostly for debugging
Form_30682.log 833 Log file, useful mostly for debugging
Form_30687.log 831 Log file, useful mostly for debugging
Tune-3068-Highland_Laddy.abc 1362 ABC music file with the extracted tune(s)
Tune-3068-Highland_Laddy.ps 35455 PostScript
Tune-3068-Highland_Laddy.txt 1362 Plain-text file with the extracted tune(s)
Tune-3068-get.log 4465 Log file, useful mostly for debugging
Tune-30681-get.log 3731 Log file, useful mostly for debugging
Tune-30686-get.log 7314 Log file, useful mostly for debugging
Tune-30687-get.log 45714 Log file, useful mostly for debugging
Tune-30688-get.log 5837 Log file, useful mostly for debugging
Tune-30689-get.log 6118 Log file, useful mostly for debugging
These files should be available for 24 hours.