<p>It wasn’t 100 years ago, but more than 25… and there were always non-music majors in marching band, concert band, and jazz bands and I’m sure there are similar or better opportunities now. And I will absolutely guarantee that the overall music environment is better than at Harvard… Here’s a link from the website about which ensembles allow non-majors:
[Performing</a> Ensembles: Bienen School of Music - Northwestern University](<a href=“http://www.music.northwestern.edu/academics/ensembles/index.html]Performing”>http://www.music.northwestern.edu/academics/ensembles/index.html)</p>