pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3965-21243_WEST_END_HORNPIPE.ps) >>/Users/jc/w/tmp/Tune-3965-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/21243_WEST_END_HORNPIPE.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_39650.log 264661 Log file, useful mostly for debugging
Coll_39651.log 263256 Log file, useful mostly for debugging
Coll_39656.log 261851 Log file, useful mostly for debugging
Form_3965.log 865 Log file, useful mostly for debugging
Tune-3965-21243_WEST_END_HORNPIPE.abc 664 ABC music file with the extracted tune(s)
Tune-3965-21243_WEST_END_HORNPIPE.ps 39220 PostScript
Tune-3965-21243_WEST_END_HORNPIPE.txt 664 Plain-text file with the extracted tune(s)
Tune-3965-get.log 4742 Log file, useful mostly for debugging
Tune-39654-get.log 5334 Log file, useful mostly for debugging
These files should be available for 24 hours.