pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4588-hornpipes.ps) >>/Users/jc/w/tmp/Tune-4588-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Australia/hornpipes.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_45880.log 450123 Log file, useful mostly for debugging
Coll_45882.log 131196 Log file, useful mostly for debugging
Coll_45886.log 249205 Log file, useful mostly for debugging
Sess-45883.log 2808644 Log file, useful mostly for debugging
Tune-4588-get.log 6583 Log file, useful mostly for debugging
Tune-4588-hornpipes.abc 2903 ABC music file with the extracted tune(s)
Tune-4588-hornpipes.ps 64911 PostScript
Tune-4588-hornpipes.txt 2903 Plain-text file with the extracted tune(s)
Tune-45882-get.log 4331 Log file, useful mostly for debugging
These files should be available for 24 hours.