pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-378-00_Title.ps) >>/Users/jc/w/tmp/Tune-378-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/proto/00_Title.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_37811.log 316642 Log file, useful mostly for debugging
Coll_37824.log 314465 Log file, useful mostly for debugging
Coll_37843.log 318825 Log file, useful mostly for debugging
Coll_37856.log 317735 Log file, useful mostly for debugging
Coll_37876.log 316644 Log file, useful mostly for debugging
Coll_37891.log 317735 Log file, useful mostly for debugging
Tune-378-00_Title.abc 912 ABC music file with the extracted tune(s)
Tune-378-00_Title.ps 30884 PostScript
Tune-378-00_Title.txt 912 Plain-text file with the extracted tune(s)
Tune-378-get.log 4288 Log file, useful mostly for debugging
Tune-37805-get.log 1760 Log file, useful mostly for debugging
Tune-37827-get.log 1554 Log file, useful mostly for debugging
Tune-37872-get.log 1636 Log file, useful mostly for debugging
These files should be available for 24 hours.