William Paul Mast is the other half of the dynamic duo that forms MysticChordZ. With over five decades of musical experience, William is a songwriter, composer, and performer who has honed his skills through years of dedication to his craft. As a multi-instrumentalist, he plays an integral role in the band’s music production, lending his expertise to both instrumental arrangements and vocal performances. William's ability to blend classic rock elements with modern influences ensures that MysticChordZ offers something both nostalgic and new.

William’s passion for songwriting and storytelling is reflected in the deeply personal lyrics that accompany the band's music. His ability to craft songs that are both introspective and relatable has helped shape MysticChordZ into a band that speaks directly to listeners. With a career grounded in both live performance and studio work, William continues to push the boundaries of what the band can achieve, always striving to create music that touches the hearts of those who listen.