Our Story...

Peter Marreiros embarked on his lutherie journey in the late 90’s. In those beginning years he built a few electric guitars. In 2003 he was inspired to build an acoustic guitar. During this process he realized this was his true passion. The demands of building an acoustic guitar were far greater and spawned deeper levels of creativity and detailed workmanship. Little did Peter know that same year he would meet legendary luthier, Kevin Ryan where both sons were playing little league baseball together. Their friendship grew and Kevin’s meticulous mastery and artistry became a goal for Peter’s builds. Peter’s attention to detail pushed him to build high quality instruments that were aesthetically stunning, uniquely designed, and embodied a strong musically appealing tone. Peter’s interest for Ukuleles was sparked during a visit to one of his friends in the winter of 2018 and coincidentally a trip to Hawaii in February of 2019 further enhanced his interest for the small happy instrument. Pairing years of guitar building experience with his new found love is what drives this builder to push the boundaries of lutherie with a vision to build a ukulele like no other. “It is with passion and love that a Cornerstone Ukulele is created. Each of my ukuleles is handcrafted and every instrument is a labor of love and dedication. My desire is for my passion to fuel yours…”

Mission & Values