I have never once encountered a piano keyboard in a dream with enough octaves to actually play. My dream self will now reliably recognize this and voice frustration at being stuck in a dream, unable to practice.
> If you recognize you're actually dreaming, though, is this a lucid dream?
I don't know but my absolute favorite when I recognize it's a dream, and I've "trained" myself to do that is to say: "Nice, this is a dream, so I can fly!". It's an awesome, awesome, awesome feeling. Usually doesn't last long but it's a cool thing to do.
As someone who almost always knows that I'm dreaming i would say no/maybe.
While most of the time i recognize that im dreaming very few times i can actually control the outcome and even fewer i have gain admin control to change anything i think those are what people would assume when talking about lucid dreams.
Also, if i start doing weird stuff or making obvious that I'm aware of my status, the NPCs on my dream become apathetic and would plainly ask for me to stop playing and just wake up.
Ok that sounds like nightmare material noe that i wrote it, but is not scary at all they sound more annoyed that anything else.
If you recognize you're actually dreaming, though, is this a lucid dream?
I've only had a couple lucid dreams in my life, and I thought they were some of the most awesome things I've ever experienced. Real life holodeck!