pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1246-Shottish_Bm_D.ps) >>/Users/jc/w/tmp/Tune-1246-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Shottish_Bm_D.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_12461.log 392515 Log file, useful mostly for debugging
Coll_12465.log 759746 Log file, useful mostly for debugging
Tune-1246-Shottish_Bm_D.abc 475 ABC music file with the extracted tune(s)
Tune-1246-Shottish_Bm_D.ps 34010 PostScript
Tune-1246-Shottish_Bm_D.txt 475 Plain-text file with the extracted tune(s)
Tune-1246-get.log 4557 Log file, useful mostly for debugging
Tune-12461-get.log 4310 Log file, useful mostly for debugging
Tune-12463-get.log 3602 Log file, useful mostly for debugging
Tune-12464-get.log 5319 Log file, useful mostly for debugging
These files should be available for 24 hours.