For CSO Principal Trumpet Esteban Batallán, the instrument is an extension of his voice, and that serves as the foundation of his music-making. When performing Mahler's iconic Symphony No. 5, Batallán emphasized, “Don't forget to sing. That's the most important thing — singing, phrasing. Everything needs to have sense. Make sure that you are singing to the end, and you have one really clear idea.”