Classical musicians need to sightread, so that pretty much excludes the blind.
Pop is a different field. Bands are more manageable because the individuals all have separate lines and are supposed to be listening to each other. Which is how blind musicians like Stevie Wonder signal changes through their playing rather than through eye contact.
In an orchestra you have entire sections of somewhere-between-6-and-24-more-or-less people all trying to play the same lines while facing in the same direction, while another section plays something else next to them and/or behind them.
Pop is a different field. Bands are more manageable because the individuals all have separate lines and are supposed to be listening to each other. Which is how blind musicians like Stevie Wonder signal changes through their playing rather than through eye contact.
In an orchestra you have entire sections of somewhere-between-6-and-24-more-or-less people all trying to play the same lines while facing in the same direction, while another section plays something else next to them and/or behind them.
Keeping everyone together is a harder problem.