At the San Francisco Conservatory of Music, Dr. Harris is on the Voice Faculty of the Pre-College & Continuing Education program.  As collegiate faculty, he taught in the Music History and Literature Department creating the first ever class on art songs by Black composers to undergraduate and graduate students. This fall, he begins teaching Basic Phonetics/Introduction to IPA in the Voice department of the college as well as Vocal Performance and Musical Theatre Workshop classes in the Continuing Education program. At the San Francisco Girls Chorus, he is a Soloist Intensive Voice Instructor for the award winning Premiere Ensemble. Other teaching affiliations include the University of Nevada, Las Vegas (voice),West Valley College (Hip-Hop) Head-Royce School (voice/musical theater), Menlo School (voice/musical theater), P.A.L.S. at the Aspen Music Festival, and Convent & Stuart Hall (voice/musical theater & general music).

Phillip is a dedicated voice educator focused on empowering students through strong technique, expressive storytelling, and inclusive repertoire. A specialist in classical songs by Black composers, he has presented lectures at institutions such as the Peabody Institute of Johns Hopkins, Westminster Choir College, UC Santa Cruz, Alabama State University, San Francisco City College, and at NATS events locally and regionally. He serves on the National NATS Nominating Committee, advises the Cal-Western DEI Task Force, and is President of the San Francisco Bay Area Chapter. He has taught masterclasses at Alabama State, the San Francisco Girls Chorus, and Los Medanos College. His students have performed lead roles on Broadway and earned top honors in competitions including NATS (national, regional, and local), Schmidt Vocal Competition, American Protégé, and the Junior Bach Festival. Many have trained at Oberlin, Interlochen, BU Tanglewood Institute, MPulse at Michigan, UCLA Summer Musical Theatre Program, SFCM Summer Vocal Academy, Berklee Summer Musical Theatre Program, and Stagedoor Manor. Phillip holds voice degrees from the University of Nevada, Las Vegas (DMA), University of Michigan (MM), and UC Irvine (BM).