pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4062-Petits_matins-Am-16-3.ps) >>/Users/jc/w/tmp/Tune-4062-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Petits_matins-Am-16-3.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Sess-40621.log 2941396 Log file, useful mostly for debugging
Tune-4062-Petits_matins-Am-16-3.abc 465 ABC music file with the extracted tune(s)
Tune-4062-Petits_matins-Am-16-3.ps 35071 PostScript
Tune-4062-Petits_matins-Am-16-3.txt 465 Plain-text file with the extracted tune(s)
Tune-4062-get.log 4666 Log file, useful mostly for debugging
Tune-40620-get.log 1446 Log file, useful mostly for debugging
Tune-40622-get.log 5399 Log file, useful mostly for debugging
Tune-40624-get.log 5854 Log file, useful mostly for debugging
Tune-40625-get.log 4326 Log file, useful mostly for debugging
Tune-40626-get.log 5422 Log file, useful mostly for debugging
Tune-40628-get.log 1448 Log file, useful mostly for debugging
These files should be available for 24 hours.