pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3163-231_the_Humours_of_Glyn.ps) >>/Users/jc/w/tmp/Tune-3163-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnTreat/GftF/231_the_Humours_of_Glyn.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-3163-231_the_Humours_of_Glyn.abc 857 ABC music file with the extracted tune(s)
Tune-3163-231_the_Humours_of_Glyn.ps 34597 PostScript
Tune-3163-231_the_Humours_of_Glyn.txt 857 Plain-text file with the extracted tune(s)
Tune-3163-get.log 4901 Log file, useful mostly for debugging
Tune-31630-get.log 5478 Log file, useful mostly for debugging
Tune-31633-get.log 4692 Log file, useful mostly for debugging
Tune-31634-get.log 10267 Log file, useful mostly for debugging
Tune-31637-get.log 3576 Log file, useful mostly for debugging
Tune-31638-get.log 19897 Log file, useful mostly for debugging
Tune-31639-get.log 8411 Log file, useful mostly for debugging
These files should be available for 24 hours.