I don’t know, I am not sure I’ve ever felt like I’ve needed a personal assistant in the way you’ve described. None of these tasks seem hard and some seem entirely unnecessary.

The music playlist example in particular seems highly unrealistic or just bound to be a meaningless interaction. I’m making a playlist for my daughter based on a conversation that I forgot? If I forgot the content of the conversation then why am I even trying to salvage that into something meaningful?

“I made you this playlist based on a conversation I forgot, but I asked the AI to creep through our conversation recording so that it looks like I was listening to you!”

“Oh, thanks I guess, I like Heartbreaker by Led Zeppelin, not the Rolling Stones.”