pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21009-Rover_Through_the_Bog_1.ps) >>/Users/jc/w/tmp/Tune-21009-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Rover_Through_the_Bog_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_21009.log 303999 Log file, useful mostly for debugging
Tune-21009-Rover_Through_the_Bog_1.abc 652 ABC music file with the extracted tune(s)
Tune-21009-Rover_Through_the_Bog_1.ps 35765 PostScript
Tune-21009-Rover_Through_the_Bog_1.txt 652 Plain-text file with the extracted tune(s)
Tune-21009-get.log 8133 Log file, useful mostly for debugging
These files should be available for 24 hours.