<p>^^
I’m not mixing anything. </p>
<p>My point is, they are asking you to perform say two movements of the Hindemeth Trumpet Concertro, Hayden, Arutunian. I fail to see how these cannot be played as they always are and there are many brass solo pieces that are over 10 minutes in length. I think you are completely misunderstanding what they are asking you to record.</p>