pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8940-Rambling_Rake-A-32-6.ps) >>/Users/jc/w/tmp/Tune-8940-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/reel/Rambling_Rake-A-32-6.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-8940-Rambling_Rake-A-32-6.abc 690 ABC music file with the extracted tune(s)
Tune-8940-Rambling_Rake-A-32-6.ps 37903 PostScript
Tune-8940-Rambling_Rake-A-32-6.txt 690 Plain-text file with the extracted tune(s)
Tune-8940-get.log 5296 Log file, useful mostly for debugging
Tune-89409-get.log 10516 Log file, useful mostly for debugging
These files should be available for 24 hours.