I now have the title, assuming it is not another red herring.
Might it have been useful for Hendrix back in '69?
But still no closer to finding how to represent 11/6.
lewap, if you Google the destination you've found and the 11/6 phrase you may find inspiration. Mine came as a voice from the sofa 'didn’t xxx talk like that?'. I do feel that the fourth word of the message is not accurate, the new content of an individual uncircled cell in rows 5 and 6 doesn’t 'symbolise' the previous content.
Greengage - yes I thought that after it had held me up for a good while but on reflection I think it is fair. The word is applied to the colour, not the content of the cells.