pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6233-Christmas_Hornpipe_the_1.ps) >>/Users/jc/w/tmp/Tune-6233-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Christmas_Hornpipe_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_62334.log 134421 Log file, useful mostly for debugging
Coll_62335.log 127970 Log file, useful mostly for debugging
Tune-6233-Christmas_Hornpipe_the_1.abc 426 ABC music file with the extracted tune(s)
Tune-6233-Christmas_Hornpipe_the_1.ps 35776 PostScript
Tune-6233-Christmas_Hornpipe_the_1.txt 426 Plain-text file with the extracted tune(s)
Tune-6233-get.log 4772 Log file, useful mostly for debugging
Tune-62332-get.log 3652 Log file, useful mostly for debugging
Tune-62338-get.log 5764 Log file, useful mostly for debugging
These files should be available for 24 hours.