Hello there

First of all, I'm fairly familiarized with the concepts of lucid dreaming. I keep a dream log that's been evolving from half remembered dreams to fully detailed, almost vivid dreams.

Now, I haven't been able to lucid dream yet, but I feel I'm getting close. I've been trying to use the WBTB/MILD induction technique, but so far.. the only thing I've accomplished is falling back to sleep without recollection of my intentions :p guess I'm not concentrating enough.

That's where an idea I had earlier this morning comes in.
Is it possible to make a reality check in your dream by hearing music?

I had the idea of putting my headphones before going to bed and set my MP3 player's alarm to 4-5 hours after I begin dreaming, so it plays a distinctive song in the middle of my dream.
I suppose the moment I hear this song I will remember setting the alarm on my MP3 player, thus, realizing I am indeed dreaming.

My only question is.. will I be able to hear the music? and most importanly, make it a reliable reality check?

Thanks in advance