This week’s opening of the 2024 Colorado Music Festival comes with the announcement that music director Peter Oundjian has signed a new, five-year contract, extending a collaboration with the Boulder-based concert presenter that dates back to 2018. It is very big news indeed; perhaps historic. Remember that Oundjian is also the principal conductor with the Colorado Symphony in Denver where he takes up the baton for key performances and helps guide the programs that the ensemble plays over the course of its entire season.