As you can see from my neckwear, I am a fan of audio tours. The best of them help me see things I would miss unless I looked at the picture for a long time. PRO TIP: ask the staff for the numbers to punch in for the children's tour. They are more fun and helpful than the grown-up version. Children don't have to listen to descriptions of a a picture of three young women embroidering as "exquisitely feminine;" nor a portrait of the artist's wife as "incredibly intimate;" nor the tartan worn in a nobleman's portrait as "highly symbolic." When they start laying on the adverbs, you know they haven't decided what they want to say.
MINOR COMPLAINT: the audio tour was given by someone with a British accent. I so wanted to hear the name "Braque" spoken with a Scottish brogue.
Thank you Scotland! What a great country! You sent us John Muir and you loaned us your masterpieces.