Thank you both, Sheba and A2Susan. I did say my brain was missing. I've been fussing and feel a right fool now. Thank you for taking me out of my misery.
What's really good is I have already started working on a bracelet for my sister - in the colours she sees when she hears the word 'Spain'. She's saving up for a trip there.
I'll say no more about the project until I've more to say.
And thank you both again.