pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-53443-Duke_of_Yorks_March.ps) >>/Users/jc/w/tmp/Tune-53443-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Brewer/Duke_of_Yorks_March.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_53443.log 261851 Log file, useful mostly for debugging
Form_53443.log 1792 Log file, useful mostly for debugging
Tune-53443-Duke_of_Yorks_March.abc 728 ABC music file with the extracted tune(s)
Tune-53443-Duke_of_Yorks_March.ps 40124 PostScript
Tune-53443-Duke_of_Yorks_March.txt 728 Plain-text file with the extracted tune(s)
Tune-53443-get.log 8832 Log file, useful mostly for debugging
These files should be available for 24 hours.