Kenneth Aigen is a music therapist whose clinical specialties include work with children and adolescents with emotional and developmental delays, and adults in mental health. His research uses musicological analyses to reveal connections between the elements of music and common cognitive, emotional, and physical goals in music therapy. He lectures internationally and has authored numerous publications on Nordoff-Robbins music therapy, pop music in music therapy, and qualitative research methodology. Two of his books, Paths of Development in Nordoff-Robbins Music Therapy and Music-Centered Music Therapy, have been translated into Japanese and Korean. Aigen is a past–president of the American Association for Music Therapy, a recipient of the Research and Publications Award from the American Music Therapy Association, and he was the scientific committee chairman for the Ninth World Congress of Music Therapy. His most recent book is The Study of Music Therapy: Core Issues and Concepts published by Routledge in December 2013. Aigen received his doctorate from New York University in 1991 and for 15 years he was the research director and then co-director of the NordoffRobbins Center for Music Therapy at NYU. From 2006 until returning to Steinhardt in 2013, Aigen was an associate professor in music therapy at Temple University where he received the Lindback Award for Distinguished Teaching. Music for this episode is “The Sidewalks of New York” by Matt LeGroulx.