Holger Marjamaa is an Estonian pianist, composer, and arranger born in Tallinn in 1992. He has released several albums as a leader, including Fellowship on Eclipse Music and Open World, blending original compositions with reinterpreted standards. His writing draws on the harmonic language of modern jazz while incorporating melodic warmth and rhythmic flexibility. Among his original compositions are Holger's Tune, which combines traditional jazz form with contemporary harmonic ideas, and You're Not Alone. Marjamaa studied at Berklee College of Music and built an international performing career that includes touring with trumpeter Chris Botti from 2019 to 2023. He has also worked alongside David Kikoski, Lee Ritenour, Dennis Chambers, Chad Lefkowitz-Brown, and the Estonian National Symphony Orchestra, appearing on more than thirty albums as a performer or guest. His compositional voice continues to develop as he balances original writing with an active performance schedule.