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  Meet Some of Our Mentors    



 Kevin Pfeffer is an American Singer/Songwriter, Recording Artist , Producer, and Entertainer from the California Bay Area.  Kevin has shared the stage with acts such as The Goo Goo Dolls, Rise Against, Boys Like Girls and many others.  He has been featured on The Vans Warped Tour,  Milwaukee's Summer Fest, Opened up for the 49ers Red Zone Rally,  performed in private shows for Google,  Apple,  Disney,  plus so many more.   As a songwriter,  Kevin has recorded several studio albums and toured Nationally.


Kevin founded eRock School and has since expanded it into a thriving community of aspiring and professional musicians.  What once started as  local music lessons passion project,  has evolved into world wide music mentorship from the comfort of your home via Zoom Remote Lessons,  and online Workshops and Masterclasses.  Lessons are still offered in person at the eRock Homefront Studio location in Gilroy California,  however many new locations are opening up soon.  eRock will soon offer a mobil teachers program where instructors can come to your location.  Contact us to request a teacher at your location.  eRock is More Than A Music School.   It is not a product or a service,  it's a process.  We are a community,   We are Music Mentorship!  Remember,  It's Not What You Play,  It's How You Play! 




Adam Martinez is a musician and music educator residing in Hollister, CA.  He received his BM in Music Education and Single Subject Teaching Credential from San Jose State University.  During his time in college, Martinez participated in the Symphony Orchestra, Symphonic Band, and Concert Choir.  As a bassist, he can be found playing in numerous musical situations, ranging from jazz combos to rock and roll bands.


Martinez currently serves as the band director for Lakeview Middle School in Watsonville, CA. , as well as a Mentor and Music Instructor at eRock.   His other public school teaching experience includes teaching string orchestra, choir, and elementary general music.  Martinez is devoted to helping everyone reach their musical goals. 




 Tim Duffy is a classically trained drummer who has been well rounded by his experiences. Started taking private drum lessons at the age of eight. His love of drumming has carried him throughout the years. After many different projects and many ups and downs, drumming has remained a constant in his life.

    Tim has been formally trained to read, write, and transcribe drum music for eight years. His diverse study of music ranges from Metal, Rock, Hip-hop, Blues, Jazz, Classical, Latin, and a little of Southern Indian rhythms. He is comfortable playing in a professional studio to a click track or a live setting with random soloing...



Cori is a professional singer classically trained with extensive backgrounds in singing, dancing, acting, and live entertainment.  Cori attended The Boston Conservatory and Berkley School of Music where she received her BA.  She has performed in musical theater around the world aboard The Queen Elizabeth 2 Cruise Ship, as well as toured nationally. At eRock she helps guide, mentor, and vocal coach students preparing for auditions and performances. 

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