About The Instructors

"Music defines the pages of our lives"

Tracy Williams


Tracy Williams has been a professional musician since the age of fourteen. He has worked with many of the major names in the music industry including Ray Charles, Jay Leno, Bernadette Peters, Al Green, Regis Philbin, Debbie Reynolds, Merv Griffin, Alan Thiche, Carole Lawrence, Rich Little, George Burns, Bob Hope, Dinah Shore, The 5th Dimension., Frankie Avalon, Mickey Dolenz, Robert Goulet, Roger Williams, Janis Siegel, Tommy Tune, Eva Gabor, Allan King Joel Grey, Phyllis Diller, Carole Channing, Al Martino, Martha and the Vandellas and many others. Tracy was also a musician for the National touring Company of New York and performed for such shows as Evita, Big, 42nd Street, Will Rogers Follies, Joseph and the Amazing Technicolor Dreamcoat, Chorus Line, City of Angels, Jolson, Hello Dolly, Bye, Bye Birdie and Meet Me in St Louis. Tracy has had numberous night club appearances including the Las Vegas Hilton, Scottsdale’s La Posada. The Phoenician and Sante Fe’s Club Cielo. He continues to perform at Skye Supper Club on a regular basis. In addition to performing, Tracy has thirteen years teaching experience in higher education. He has been an adjudicator for the NAU Jazz Festival, Phoenix Union High School Jazz Festival, and Arizona All State Jazz Festival. He was in charge of guitar editing for North American Liturgical Resources and a member of The Arizona Commission for the Arts. His conducting experiences include Grand Canyon University’s production of The Sound of Music and an international tour of Europe with the Grand Canyon University Jazz Band, Performances were held in such venues as the Paris Museum of Modern Art, Mozarteum (Salzburg)Austria, The United Nations Center (Geneva, and numerous jazz clubs. Tracy’s guitar work can be found on many recordings and countless commercials including tracks for the Survivor series. Most recently, he directed both guitar and jazz studies at Arizona Christian University. Tracy has also been involved in music ministry for several years. He is a graduate of Grand Canyon University. In addition to the above, Tracy enjoys arranging music and mentoring students. He resides in Glendale along with his wife Nancy and son Parker.

Joseph Martinez


Joseph is a veteran music teacher originally from sunny El Paso, Texas. He has been in the Valley for the past 18 years and has taught every instrument in some capacity. He currently teaches Middle School band, orchestra, and general music for the Cartwright School District. In addition, he teaches several music history classes through the Maricopa County Community College, instructs guitar and piano through the 21st Century After-School Program, is an advisor for the school drama department, and is a peer-counselor for underclassmen at Estrella Mountain Community College.

Joseph has a Bachelors Degree in Music Education from New Mexico State University, Masters Degrees in Music Education, Secondary Education, and Counseling. He also is working toward completing his Doctorate in Secondary Education.

Joseph’s experiences as an educator, adjudicator, mentor, counselor, performer, and advisor have provided him with a strong foundation to teach every level and age of musician. His love for music, combined with his genuine fondness for working with all types of students, has also given him the ability to bring out the very best in everyone he works with. His main goal is to provide a musical experience that is fun, exciting, and stimulating for all levels of musicians.

When Joseph is not teaching, he enjoys running, hiking, exploring new restaurants, traveling, learning new instruments, and enjoying the beautiful weather.

Cody Dull

Originally From Montana, Cody earned his BFA in Directing from Nebraska Wesleyan University. Past directing credits include, The Female Odd CoupleCharlie and the Chocolate FactoryExit LaughingBrighton Beach MemoirsHow the Grinch Stole Christmas (2016 AriZoni Directing Nomination), Mom's GiftAlice in Wonderland (2016 AriZoni Directing Nomination), Treasure IslandLost In Yonkers and many more. Although directing is Cody's main theatre passion he has also dabbled in acting. Favorite roles include, Mr. Mann in Peacemaker with the Phoenix Theatre for Young Audiences, Arles Struvie in Greater Tuna, Goat in Robber Bridegroom and Max in Lend Me A Tenor, just to name a few. Cody was also recently nominated for a 2016 AriZoni for his costume design in How the Grinch Stole Christmas. Cody loves teaching children about acting he believes it builds their confidence and makes them a more well rounded individual. When Cody is not teaching he stays busy being the Executive Artisitc Director of Stage Left Productions.


Shirley Hayes Mollyhorn


Shirley studied piano with Joan Gilbert and Daniel Fletcher in Memphis,TN and graduated from MSU in Piano Performance. She also has an extensive performance background with various churches in the Phoenix Valley, as well as back east. She accompanied the Marshallette Trio on Doyle Blackwood's weekly TV show for several years and has also accompanied singers on TBN. She has worked with various studio artists, played many different genres of music and performed in many different settings as accompanist, and soloist for weddings, lounge music, classical music, church, etc.



Shirley is also a member of the Phoenix Music Teacher's Association and the Music Teacher's National Association. Her teaching experience includes Music Works Academy, The Institute of Music Education in Scottsdale, and Milano's Music Studios in Mesa which has compiled 20+ years of experience. Experience includes class setting, as well as private lessons with all ages. In addition to learning songs, many other techniques are used to improve the students' technical skills and chord/scale knowledge, which will give each student a solid foundation for growth potential.


"My goal as your teacher is to enable you to to progress and succeed in whatever direction you choose to take your musical adventure, whether that is classical, rock, gospel, jazz, etc."


Rebeca Mode

Piano, Violin & Voice

Rebeca started piano lessons when she was 7 and violin at the age of 12 in her hometown of Brasilia, Brazil. In 2012 she moved to Arizona to start her Masters in Musical Theatre Direction at ASU, which she finished in May 2014 after directing the musicals SMILE (Nov/2013) and RENT (April/2014).

Rebeca has degrees in Conducting and in Musical Education from the University of Brasilia, where she worked with the University's Community Choir as assistant conductor.

Rebeca also worked as the Early Childhood music teacher at the American School of Brasilia, combining her passion for music with her love for children. Privately, she's been teaching piano and violin since 2009, having students as young as 4 years old to a very motivated 86-year-old senior.

Rebeca is married to her "baby", Jeff Mode.

Angie Gater

Instruments taught: Piano, flute, and voice.
Years Experience: 33
Education/Background: Bachelors Degree in Music Education BME (University of Oklahoma)

I've had the pleasure of being a Music Educator for over 25 years, 14 of which were in public school, and the rest as a private instructor. I love every day that I can teach music, because I delight in being able to give such an enjoyable gift that my students can keep giving to others!

I've been a singer since day one, began piano lessons in kindergarten, and then took up the flute in 5th grade. I never would have expected that my flute playing abilities would carry me through college, where I received a scholarships to become a Music Educator!

Yes, Im originally an OKIE, but have taught all over the United States, and had the privelege of performing abroad, and studying with great professors and performers alike!! Ive been a performer in many symphonies, both in the US and abroad, and have crossed paths with many greats, including the late David Bowie, Philip Glass, and the Moody Blues!

Although these opportunites have molded my musical performing career, I know that my heart is forever bound to shaping students' musical abilities to their full potential. It is such a rewarding experience, and Im very happy to be a part of the Note Room Faculty!