 Erős came to the University of Washington School of Music in Seattle, Washington in 1989 as the Morrison Endowed Professor of Conducting and Music Director and Conductor of the University Symphony and Opera, where he taught until his retirement in 2010; up until his death, he held the honorary title of Professor Emeritus.He also taught conducting from 1960–65 at the Amsterdam Conservatory, where his pupils included Hans Vonk, Edo de Waart, and Jan Stulen, and served as Director of Orchestral and Operatic Activities at the Peabody Conservatory of Music from 1982–85.At the personal request of Richard Wagner's granddaughter Friedelind, Peter Erős led the first set of recordings of orchestral works by Friedelind's father, Siegfried Wagner.