He says something in Spanish - what is it? If anyone knows the English translation, or even just the Spanish (and I'll enter it in the ever-reliable babelfish).

Per Allen Shaw: Somebody implies Camilla and Luigi were involved. Camilla says, (in Spanish) "I never went to Casablanca with Luigi," another man says, (in spanish) "what a pity." The only thing Adam says (I think) is "Que va?" Roughly: who cares?

Okay, thanks. I wonder if that's a reference to the movie, Casablanca. Also, I think the guy who played Luigi C. is sitting at the same table as Camilla, Diane et. al. - the guy who in another thread, I speculated might be one of Diane's clients.

[Edit: It seems like there must be some significance to Diane knowing a little Spanish, as is implied when R. del Rio sings in Spanish and Betty seems to understand her. For some reason the thought has entered my head, that the man who molested Diane when she was younger (the friend of her father, as implied at the audition for Brooker), might have been a Spanish teacher, tutor, or someone who was teaching her Spanish informally.]

This all points to Camilla: Later in the film (after the Betty/Rita dream has ended, but before the party), Camilla speaks with the neighbour's voice and, on another occasion, a Spanish accent.
Also, after they return from the visit to Club Silencio, Betty disappears, and Rita says, "?Donde estas?"
This confirms what I already believe: That the abuser was Camilla (known as "Aunt Ruth" to the young Diane). Of course, Camilla is a lot older now and probably looks more like the Aunt Ruth that we see on the screen, than Rita. I said, about a year ago, that I wouldn't post my theory again, so I won't go on about it.
But this idea that the abuser could have been a Spanish teacher, teaching in the home, had not occurred to me, but I like it a lot, and it makes sense. Thanks fonebone for some good ideas!

I previously posted the following on another thread, a few days ago:

There were 2 instances of people appearing to make piano playing movements: The first was when Betty was on the phone. She appeared to be playing an imaginary piano with her left hand (presumably just chords, because her right hand was holding the phone). She could just have been fidgeting though! But when you see how much has gone into directing hand movements, there could be something in it.
The second instant is when Rita is in Winkies. Here she has both hands out in front of her on the table and briefly appears to be playing a tune with them. There are other instances in which Rita has her hands placed in front of her as if about to play a piano, but she doesn't actually go on to move her fingers.
I don't know how this fits in with the overall story, but somehow the piano design of the ashtray (mentioned in the "10 clues"), Rita's (and possibly Betty's) hand movements (and positioning) and the Magician's club (on Franklin ave) in which the ghost of a pianist plays, seem to be connected via Club Silencio.

If we forget about the ghost, this could suggest that Camilla was also a private piano teacher. This could explain why Rita seemed to be sitting, on occasions, with her hands in front of her and, in one instance, making piano playing movements. And why Betty, (the pupil, young Diane) only plays her imaginary piano with one hand (and does it while slumped on the sofa).

I imagine that Camilla could have been a friend of the family who was brought into the home to give private piano and Spanish lessons to the young Diane.

Thinking about it, the abuser was just a Spanish teacher. For most of the first dream we do not hear Camilla speak Spanish, or even speak English with a Spanish accent. This is because the long early part of this dream is Diane's fantasy, in which she idealizes herself, and Camilla (as Rita). Spanish lessons would be seen, by Diane, as part of the abuse, or situations in which the abuse would have taken place. Rita's posture (of a pianist) and her hand placings and movements could indicate Diane's attempt to modify the truth: So that her Spanish tutor/abuser becomes the vulnerable, attractive Rita, the Piano teacher.
However, she cannot maintain the illusion in her dream, and this starts to fall apart when Rita starts saying "silencio" in her sleep. The Club Silencio is a further revelation: The music is just an illusion. It is a twilight place (half night) in which things happen behind curtains.
Instead of the sound of musical instruments, she hears a woman singing in Spanish without (I think, but I'll have to check) any musical backing. (This could mean that there never was any music; no piano lessons, just the terror of being abused by the Spanish teacher.)
Now when Diane tries to form a relationship with the Lamp Lady, who she tries to turn into a fantasy version of Camilla, we see the piano ashtray. This is symbolic of Diane's attempt to recreate her abused past in a more positive light. But when this fantasy doesn't work, we again hear Camilla speaking with a Spanish accent. I really need to look at that ashtray scene, because I know that I have missed something significant.

Thanks again, fonebone for coming up with the idea of the Spanish teacher/abuser theory. And a thank you, too, to vicster who first suggested that the Lamp Lady was participating in Diane's role play games, in which she got her to pretend to be Camilla.