pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8725-Dr_Peters_Hornpipe_1.ps) >>/Users/jc/w/tmp/Tune-8725-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Dr_Peters_Hornpipe_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_87250.log 549875 Log file, useful mostly for debugging
Tune-8725-Dr_Peters_Hornpipe_1.abc 541 ABC music file with the extracted tune(s)
Tune-8725-Dr_Peters_Hornpipe_1.ps 36205 PostScript
Tune-8725-Dr_Peters_Hornpipe_1.txt 541 Plain-text file with the extracted tune(s)
Tune-8725-get.log 5222 Log file, useful mostly for debugging
Tune-87254-get.log 5137 Log file, useful mostly for debugging
These files should be available for 24 hours.