pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2699-GallantWeaver.ps) >>/Users/jc/w/tmp/Tune-2699-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/GallantWeaver.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_26990.log 291355 Log file, useful mostly for debugging
Coll_26993.log 285735 Log file, useful mostly for debugging
Tune-2699-GallantWeaver.abc 1657 ABC music file with the extracted tune(s)
Tune-2699-GallantWeaver.ps 41599 PostScript
Tune-2699-GallantWeaver.txt 1657 Plain-text file with the extracted tune(s)
Tune-2699-get.log 4885 Log file, useful mostly for debugging
These files should be available for 24 hours.