I've done it before. But it takes a long time. I mean, I must be alone to do lucid dreaming. To avoid being disturbed and there were no extraneous sounds. Or need to move away from external stimuli. I did dreams with Mika before, even at work). As a child I created a dream with my imaginary family. I had a husband and five children))). I was could manage my imaginary family and I knew every thing in my imaginary home. But it is interesting that it is not always possible to fully manage such a dream. It happens that people in my dreams can do what they want. I did "scroll through" my dream back if I wanted to change something). This is interesting. This is different from fantasy. Because you are not control and do not notice the outside world. It's like drowsiness.
If I'm tired or I cannot sleep, I hear music, singing,a lot of musical instruments , choirs ... To write songs in sleep is so easy). But as soon as the light stimulus come from the outside ... everything is falling apart and I can not remember almost anything. So sorry that a music turns out very nice, but there is no way to make a record with our brain).