Terry Eder is a retired choral conductor and music teacher with over 40 years of experience at both the college and secondary levels. He remains active as a teacher and currently teaches one AP music theory class at Lovejoy High School. He is a College Board Consultant and has presented at many AP summer institutes and one and two-day workshops and has served as a reader and question leader in the reading of the AP Music Theory exam for the past fifteen summers. He has also developed a one-day workshop on vertical teams in music theory for the College Board, has written an article on strategies for dealing with the sight-singing portion of the AP exam, and has presented an online professional development session entitled, “Sight Singing and Its Influence on Melodic and Harmonic Dictation.” He is past co-chair of the College Board AP Music Theory development committee and served as a member of the Music Writing Team for the 2014 National Standards in the Arts. Before his retirement from full time teaching, he was named Plano Senior High School Teacher of the Year. He is also the primary author along with Akira Sato of the AP Instructor’s Manual published in 2018 to accompany the third edition of The Musician’s Guide by W. W. Norton. He holds Bachelor of Music Education and Master of Music Education degrees from Texas Christian University and the Doctor of Musical Arts degree in choral conducting from the University of Oklahoma.