pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4716-Field_Marshal-D-32-2.ps) >>/Users/jc/w/tmp/Tune-4716-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/hornpipe/Field_Marshal-D-32-2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-4716-Field_Marshal-D-32-2.abc 441 ABC music file with the extracted tune(s)
Tune-4716-Field_Marshal-D-32-2.ps 35090 PostScript
Tune-4716-Field_Marshal-D-32-2.txt 441 Plain-text file with the extracted tune(s)
Tune-4716-get.log 4857 Log file, useful mostly for debugging
Tune-47161-get.log 3330 Log file, useful mostly for debugging
Tune-47164-get.log 5884 Log file, useful mostly for debugging
Tune-47165-get.log 5958 Log file, useful mostly for debugging
These files should be available for 24 hours.