pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7523-032_Scotch_Ghost.ps) >>/Users/jc/w/tmp/Tune-7523-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1798/Bland_Weller/032_Scotch_Ghost.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_75231.log 282925 Log file, useful mostly for debugging
Coll_75233.log 278710 Log file, useful mostly for debugging
Coll_75234.log 277305 Log file, useful mostly for debugging
Tune-7523-032_Scotch_Ghost.abc 675 ABC music file with the extracted tune(s)
Tune-7523-032_Scotch_Ghost.ps 33386 PostScript
Tune-7523-032_Scotch_Ghost.txt 675 Plain-text file with the extracted tune(s)
Tune-7523-get.log 4688 Log file, useful mostly for debugging
Tune-75232-get.log 4313 Log file, useful mostly for debugging
Tune-75237-get.log 6562 Log file, useful mostly for debugging
These files should be available for 24 hours.