pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6486-learnW.ps) >>/Users/jc/w/tmp/Tune-6486-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/learnW.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_64861.log 744459 Log file, useful mostly for debugging
Tune-6486-get.log 16340 Log file, useful mostly for debugging
Tune-6486-learnW.abc 11838 ABC music file with the extracted tune(s)
Tune-6486-learnW.ps 129881 PostScript
Tune-6486-learnW.txt 11838 Plain-text file with the extracted tune(s)
Tune-64861-get.log 3861 Log file, useful mostly for debugging
Tune-64865-get.log 4793 Log file, useful mostly for debugging
Tune-64869-get.log 6015 Log file, useful mostly for debugging
These files should be available for 24 hours.