I'd give waking up a lot the biggest chance If I were you.

But that's just because last night I woke up 3 times, and had 3 LD's in a row. (in 1 night)
I'd give reading the smallest chance though, They would increase the clarity or vividness of a dream, but would (in my mind) not really affect the frequency of lucid dreaming.

And the music: Might be.
I've listened for techno for a couple of hours and somehow It helped me lucid dream .