I don't wanna be disrespectful with any musician (Who plays an instrument) but for me, It doesn't matter if Hans has the best musicians in the world or some good ones, I mean he tells them what chords, melodies to play.

I could have the best orquestra at my house and the outcome wont be as good as his

I agree. That's why you have instrumentalists and composers. The composer's job is to give them something to play while the instrumentalists job is to have the technique to play it.

Think of it like entrepreneur and employees. The composer is the mastermind who hires different types of people in order to combine their efforts into one goal. They may not be the best at playing one instrument but they know a lot about each and every one so that they understand how to utilize them in harmony.

The instrumentalist is like the employee except they're much more specialized in their work. They may not be the best composers but without them it wouldn't be possible for the music to be played in the first place.

Without the composer the instrumentalist has no job just like without the entrepreneur of a company an employee has no work. You need both in this world to retain a balance.

I have always felt that musical inspiration works a lot like genetics. Fascinating to think about.

Woe thats so true, your inspirations are like the parents of your work