ABBA Pays Touching Tribute to Beloved Sound Engineer Michael B. Tretow, Who Passed Away at 80
The Swedish music legend’s longtime sound engineer, Michael B. Tretow, has died at the age of 80, leaving behind an incredible legacy.
A pivotal force behind ABBA’s unmistakable sound in the 1970s, Tretow’s innovative work helped define a generation of music and cemented the band’s place in history.
In a rare and heartfelt move, all four members of ABBA shared emotional statements honoring Michael’s life and lasting impact. The tribute was posted on their official Instagram, reflecting deep gratitude for his unforgettable contributions.
Bo Michael Tretow (August 20, 1944 – May 20, 2025) was a legendary Swedish sound engineer, producer, musician, and composer—widely celebrated as the “fifth member” of ABBA. His groundbreaking work was instrumental in crafting the band’s signature sound during their golden era from 1970 to 1982.
Hailing from Norrköping, Sweden, Tretow’s passion for sound blossomed early. As a teenager in the 1960s, he spent hours experimenting with recording techniques in his bedroom, using modest equipment to pioneer innovative ideas. This dedication led him to Metronome Studio in Stockholm in 1967, where he connected with Björn Ulvaeus and Benny Andersson—sparking a creative partnership that would change the face of pop music forever.
Renowned for his inventive studio methods, Tretow crafted ABBA’s lush, layered soundscapes using effects like tape delay and vocal doubling. His meticulous attention to detail and fearless experimentation gave the band’s music its rich, polished quality that captivated fans worldwide and secured their place in music history.
Beyond his iconic work with ABBA, Michael B. Tretow made significant contributions to the wider music world. He lent his talents to the hit musical Chess and collaborated with notable Swedish artists like Ted Gärdestad and Lena Andersson. Showcasing his playful creativity, Tretow also released his own unique albums—Let’s Boogie (1976) and Hystereo Hi-lites (1989)—highlighting his diverse musical skills and quirky style.
In 2001, Tretow suffered a stroke, which gradually led him to step away from the music scene.
He is survived by his son, Rasmus Tretow, and his wife, Malin Hertzman, leaving behind a legacy that continues to inspire generations.
