Our Team

Rodger Guerrero

Director of Choral Studies

Rodger Guerrero is in his 9th year as Director of Choral Studies at Pasadena City College. He conducts the Chamber Singers and Concert Choir, and currently teaches Preparatory Music Theory, Vocal Techniques, and Music Appreciation classes. A 2023 PCC Risser Award Teacher of the Year Finalist, he has conducted ensembles at all levels for 38 years, including high school choirs for 28 years, collegiate vocal ensembles at the University of Miami and USC, and church choirs of all styles for 26 years. Professor Guerrero has conducted four different high school choirs in six concert performances at five American Choral Directors’ Association (ACDA) Western Division and National Conventions. Choirs under his direction have performed worldwide and were featured on The Today Show and nationally syndicated programs in Bulgaria and Spain. Many of his former students are music educators and have performed professionally both in major opera houses across the United States and on Broadway. Professor Guerrero earned a BA from Loyola Marymount University and an MM in Choral Conducting from the University of Miami, and completed doctoral studies at USC.

Professor Guerrero recently finished his term as the Collegiate Repertoire & Resource Coordinator for the ACDA Western Region. He has held other positions with professional music organizations such as CMEA, CCDA, and SCVA and has presented clinics concerning conducting, repertoire, music education, and rehearsal techniques at CMEA, CCDA, and SCVA events. His advocacy work with StandUp4Music has helped to advance pro-arts legislation in the California Assembly and Senate.

LeRoy Villanueva

Adjunct Vocal/Choral Faculty, Classical/Musical Theatre

Mary Durst

Adjunct Vocal Faculty, Jazz

Mary Durst is a singer/pianist/songwriter who has worked in the music industry for more than 40 years. Originally from the Detroit area, her professional career and education began in Gospel and Classical music from Spring Arbor University while in High School where she toured with groups, as a soloist, and she also was a piano accompanist for several choirs. As a scholarship winner at Huntington University in Indiana, she then auditioned &; joined a jazz fusion band in LA at the age of 18. Since then she has opened for bands such as Earth Wind and Fire, Ronnie Laws &; toured with several groups including her own with husband, saxophonist, Craig Durst. Mary studied extensively with Seth Riggs instructor, Wayne Eikenberry of Azusa Pacific University where she was accepted into the music program, and also with Jazz legend Nancy Wilson through Cal Poly Pomona. As an educator she has given music clinics to hundreds of schools around Southern California. As a faculty instructor at Pasadena City College since 2006, she helped develop their successful jazz vocal program. Here she also teaches Rock History, Jazz History, Pop Songwriting, Music Theory and Jazz Vocal Combos. She has also been teaching in her own private teaching practice for more than 40 years. Her and her husband’s studio’s roster has averaged 120 to 200 students a month along with their own elite teachers for more than 37 years in L.A. They have produced 100’s of student showcases through the years. As a studio musician and song writer, besides work with other artists, Mary wrote &; arranged all original works for 8 of her own albums. Worldwide play of her tunes includes “94.7 FM, The Wave” in LA. Four of her songs hit top 40 smooth jazz charts between 2001 &; 2007, and are currently on iTunes and streaming stations including Spectrum’s Music Choice smooth jazz channel. She’s also been the lead worship pastor at one of the most racially diverse churches in the nation for 30 years out of Long Beach California where she offered a rich experience and platform for some of the most diverse vocalists & musicians out of a purely positive environment. Recently she received a Grant from Azusa Pacific University for her newly founded program called “Aurora Worship Training” for multi-generational worship. Over the pandemic Mary received state certification for Distance Education through Pasadena City College to teach online at college level. She has written 2 courses for LA College of Music in Pasadena over the past few years including Improvisation II for vocalists and Chart Writing. She is currently working on several other courses with LACM’s esteemed colleagues in developing 2 masters level course. In her free time, Mary loves to ride her Harley Davidson Motorcycle with her saxophonist husband Craig and she has won several awards for her custom bike design.

LeRoy Villanueva is winner of several prestigious vocal awards, including the Metropolitan Opera National Auditions, San Francisco Opera’s Scwabacher Award and the first recipient of the Lotus Foundation award, earning him his debut recital at Carnegie Hall. He has sung at San Francisco, Houston, Philadelphia, Geneva, Montreal, St. Petersburg, Dresden, and Paris Opera houses, to name a few, as well as with major orchestras including Los Angeles, San Francisco, Chicago, Suisse Romande, and Tokyo Symphony Orchestras. LeRoy has toured extensively throughout Europe with Kim Crisswell and Sir Wayne Marshall in semi-staged productions of Leonard Bernstein’s musical, Wonderful Town and Cole Porter’s musical, Fifty Million Frenchmen. He has toured throughout the US, singing solo recitals for Columbia Artists and has recorded under the Erato and Nuova Era labels. LeRoy was also featured in the BBC films production of Amahl and the Night Visitors. LA Opera Connects commissioned him to write librettos for several children’s operas, including, Figaro's American Adventure, and The Marriage of Figueroa. LeRoy is currently Professor of Voice, Opera and Musical Theater at PCC and Chapman University.

Michelle Patzakis

Adjunct Vocal Faculty, Classical

Michele Patzakis, DMA, is an arts administrator, director, performer, and music educator who serves on the vocal faculties of both Pasadena City College and Azusa Pacific University and is a Teaching Artist with LA Opera. She has received critical acclaim for performances as a leading soprano with the New York City Opera, De Munt, the Zurich Opera, the Spoleto Festival, and the Vienna Radio Symphony Orchestra. She enjoys recital and concert work across the region and is actively engaged in artistic work across the Greek community - including a current recording project of Greek folk songs and hymns for St. Sophia Cathedral and performing roles in and serving as the diction coach for the Theodosia Roussos world-premiere opera, Polymnia for the UCLA Stavros Niarchos Center for Hellenic Studies. Patzakis earned a Doctor of Musical Arts degree from the USC Thornton School of Music, where she was awarded the Thornton Vocal Arts Outstanding Graduate Award. In addition to serving as the Head Teaching Assistant and directing productions for the Chamber Opera of USC, she conducted original research in the areas of Vocal Arts Medicine and Music Teaching and Learning. Her work has been presented for the Voice Foundation, the Fall Voice Symposium, the Performing Arts Medicine Association, the California Music Educators (CASMEC), and the National Association of Teachers of Singing Conferences. As part of her Arts and Health work, she co-created and teaches a Covid-19 “long-haulers” rehabilitation course, “Opera for Life and Wellness”, in collaboration with LA Opera and UCLA Health which has been featured on CNN and Inside Edition.  She has been the program coordinator for the LA County Arts and Health Week for the past three years and has created mindfulness sessions for LA Opera staff as well as a filmed segment that was presented during an LA Opera Fall 2024 simulcast. A former award winner of the Metropolitan Opera Los Angeles  District and Western Region Auditions and Loren L Zachary National Vocal Competition, she now serves as the Director of the San Francisco District of the Metropolitan Opera Laffont Competition and Vice President-Secretary of the Loren L Zachary Society for the Performing Arts. Dr Patzakis is also on the Executive Boards of NATS-LA and the Southern California Voice Foundation and Community Advisory Board of the UCLA SNC for Hellenic Studies.