What I really have in my head, my imagination, my understanding of music, I never really get that out.

Summary

This quote suggests that the person feels a disconnect between their internal musings and their ability to express their ideas or emotions through music. Despite having a rich imagination and deep understanding of music, they struggle to fully translate their thoughts into actual compositions or performances. They feel a creative blockade that impedes them from fully realizing the potential within their mind, leaving them longing for a way to bridge the gap between their inner artistic world and their external expression of it.