pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3724-Griffin_Hornpipe_D16.ps) >>/Users/jc/w/tmp/Tune-3724-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Griffin_Hornpipe_D16.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_37247.log 267473 Log file, useful mostly for debugging
Coll_37248.log 308214 Log file, useful mostly for debugging
Tune-3724-Griffin_Hornpipe_D16.abc 455 ABC music file with the extracted tune(s)
Tune-3724-Griffin_Hornpipe_D16.ps 35179 PostScript
Tune-3724-Griffin_Hornpipe_D16.txt 455 Plain-text file with the extracted tune(s)
Tune-3724-get.log 4651 Log file, useful mostly for debugging
Tune-37241-get.log 4007 Log file, useful mostly for debugging
Tune-37245-get.log 4737 Log file, useful mostly for debugging
Tune-37246-get.log 5460 Log file, useful mostly for debugging
These files should be available for 24 hours.