Are you a classical musician?
I often wondered how any orchestra placed musician can concentrate on their piece of music when surrounded by the sounds from other people’s instrument. I guess you just learn to block out all distraction.
I was a singer. I grew up in the children’s choruses at the Met and City Opera. For most parts of the orchestra, it’s similar to the chorus where you are immediately surrounded by like-instruments. That probably makes it easier. Unless you’re the harp player or something. Then, you’re on your own.
You concentrate on your part, but you hear the others, and that inspires all to play together.