You're right, I did miss that you had jumped into the conversation I was having with someone else who did claim to be a professional. Perhaps you should read the comment I was replying to before you jumped in to comprehend why I wrote what I did.

Regardless, I still maintain the point that playing the same note over and over again isn't particularly challenging. Whether it be orchestra or any other setting, maintaining pitch consistency is something high schoolers can manage. If that impresses you, then you're the one lacking in depth of musical skill.