pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1823-Mr_Wilsons_H_G3.ps) >>/Users/jc/w/tmp/Tune-1823-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Mr_Wilsons_H_G3.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_18232.log 399540 Log file, useful mostly for debugging
Coll_18235.log 296974 Log file, useful mostly for debugging
Coll_18238.log 413590 Log file, useful mostly for debugging
Tune-1823-Mr_Wilsons_H_G3.abc 547 ABC music file with the extracted tune(s)
Tune-1823-Mr_Wilsons_H_G3.ps 35239 PostScript
Tune-1823-Mr_Wilsons_H_G3.txt 547 Plain-text file with the extracted tune(s)
Tune-1823-get.log 4546 Log file, useful mostly for debugging
Tune-18233-get.log 3800 Log file, useful mostly for debugging
Tune-18235-get.log 5758 Log file, useful mostly for debugging
These files should be available for 24 hours.