Described as "beautifully organic," "scenic," "charming," and even "hauntingly alluring," the music of Peter B. Kay is a blend of the traditional and the contemporary. His pieces often feature lyrical, recitative-like melodies and light counterpoint, and many of his works incorporate blues and folk influences. Large structures are built from episodic fragments – several smaller parts that are connected but individually framed. With hints of atonality, minimalism, neoclassicism, and popular music, his eclectic style is both familiar and engaging.

Peter began playing double bass under the tutelage of William Scott and within a few years joined the Spartanburg Philharmonic Orchestra as a regular section member. In 1996, Peter started working with Milton Masciadri, professor of music at the University of Georgia and world renowned bass soloist, and in 2001, he became a fulltime member of the Hendersonville Symphony Orchestra as well as a guest in several other orchestras in the region.

In 1997, he began studying composition under John Moody and in the same year, Masciadri commissioned him to write a piece for piano and double bass - later incorporated into Masciadri's European and South American concert tours. The following spring, Peter won the "South Carolina Archibald Rutledge Scholarship" competition in composition.

Peter went on to receive his Bachelor of Arts in Music from Furman University where he studied composition under Mark Kilstofte and double bass under Tim Easter. He sat principal chair in the university orchestra for the majority of his four years and performed regularly in recitals. Peter then attended the University of South Carolina where he studied under John Fitz Rogers, Samuel Douglas, and Reginald Bain, receiving both his Masters in Music and Doctor of Musical Arts degrees, with an emphasis in Music Composition and additional interests in Film Sound and Musical Humor studies.

In January 2014, Peter founded Treefalls, a non-profit organization that promotes the performance of contemporary chamber music.