pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3723-Independence_the_1.ps) >>/Users/jc/w/tmp/Tune-3723-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Independence_the_1.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_37237.log 306809 Log file, useful mostly for debugging
Tune-3723-Independence_the_1.abc 535 ABC music file with the extracted tune(s)
Tune-3723-Independence_the_1.ps 38099 PostScript
Tune-3723-Independence_the_1.txt 535 Plain-text file with the extracted tune(s)
Tune-3723-get.log 4603 Log file, useful mostly for debugging
Tune-37235-get.log 5691 Log file, useful mostly for debugging
Tune-37237-get.log 5513 Log file, useful mostly for debugging
These files should be available for 24 hours.