pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-68750-Mountain_Ranger.ps) >>/Users/jc/w/tmp/Tune-68750-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Nelson/Mountain_Ranger.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_68750.log 843 Log file, useful mostly for debugging
Tune-68750-Mountain_Ranger.abc 518 ABC music file with the extracted tune(s)
Tune-68750-Mountain_Ranger.ps 36838 PostScript
Tune-68750-Mountain_Ranger.txt 518 Plain-text file with the extracted tune(s)
Tune-68750-get.log 4542 Log file, useful mostly for debugging
These files should be available for 24 hours.