pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5724-ODonnell_Aboo-D-24-2.ps) >>/Users/jc/w/tmp/Tune-5724-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/march/ODonnell_Aboo-D-24-2.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_57249.log 890331 Log file, useful mostly for debugging
Tune-5724-ODonnell_Aboo-D-24-2.abc 526 ABC music file with the extracted tune(s)
Tune-5724-ODonnell_Aboo-D-24-2.ps 35021 PostScript
Tune-5724-ODonnell_Aboo-D-24-2.txt 526 Plain-text file with the extracted tune(s)
Tune-5724-get.log 8546 Log file, useful mostly for debugging
Tune-57240-get.log 3598 Log file, useful mostly for debugging
Tune-57242-get.log 4541 Log file, useful mostly for debugging
These files should be available for 24 hours.