What if you can't transform creative ideas into reality?

Trilobite asks:

"I have a question and/or idea for a video:
Lot's of times you are talking about how to play stuff, create stuff, how to approach things and so on, which is great (and really helpful!), but I came up with another and probably bigger problem - what if one can't transform what's in their head (or heart?) into reality (music, of course ;) because they lack the ability to play the instrument very well (or at all), that they live with some kind of pressure of ideas they want to release, but lack the knowledge how to transform them.
I'm not sure you understand me, but I hope you do."

Well, what makes you think you can't? :) I go into some possibilities.

Torley