Applicable to elderly? The least misleading answer is surely No. But there is a sense in which I could say Yes. The question just doesn't actually make much sense with respect to the AOTC.
A museum? No. Another smattering of applause.
Geological? No. The audience considers retracting its smattering response to the "Fossils" question on the grounds that it was probably unhelpful.
Orchestra? No. The audience considers smattering, then thinks better of it.

Myth and legend? There is a connection. At the start I stated that the Mineral Connection to the AOTC has Animal and Vegetable subconnections; myth/legend are an Abstract subsubconnection of the Animal subconnection of the Mineral connection to the answer on the card, which is Abstract. I presume that clarifies matters. :)
Begins with P? No.
To do with sounds people make? It can, but need not, be connected to sounds that people make. (Also, sounds people make could be an Abstract subsubconnection of the Animal subconnection blahblahblah.)

(To the extent the last question was prompted by the one occasion of audience enthusiasm, that might indeed be a profitable line of enquiry. Or you might want to pursue one or more of the A,V,M connections.)

Animal connection human? Yes
Life? No.
Music of the spheres? No.

Civilisation? I'm going to go with Yes. Some of these questions are so broad that they are hard to answer, but, I dunno, "Yes" just feels right in this case. That said, I'm not sure it's helpful.

A wild guess.