Dr. Alexander has served as President of the Texas Orchestra Directors Association, Vice-President of the Texas Music Educators Association, and President of the Texas Chapter of the American String Teachers Association (ASTA). He currently serves as Immediate Past-Chair of the ASTA National Orchestra Festival. His work has been recognized with the Houston Symphony Award for Excellence in Teaching, ASTA Elizabeth A.H. Green Award, University of Houston Outstanding Music Alumnus, TODA Orchestra Director of the Year, and Baylor Outstanding Professor Award.
Dr. Alexander has presented his research on string sight-reading, tuning, and improvisation at state, national, and international symposia. He has co-authored Orchestra Expressions (Books 1 and 2), Expressive Techniques for Orchestra, and Expressive Sight-Reading for Orchestra (Books 1 and 2). His research is published in the Journal of Research in Music Education, UPDATE: Applications of Research in Music Education, the String Research Journal, Texas Music Education Research, the American String Teacher, the International Society of Assessment in Music Education, and the Southwestern Musician. Alexander has served as clinician/conductor for All-State and Honor groups across the United States, with several engagements in Europe.