Marta Sofia Honer is a viola and violin performer, session player, arranger, composer in Los Angeles. Working in both classical and contemporary fields, Honer’s versatility in different musical settings has garnered her studio credits alongside Beyoncé, Kendrick Lamar, Makaya McCraven, Angel Olsen, Fleet Foxes and more — including nine Grammy nominations, and three wins including album of the year.

On stage she can be found playing at festivals and concert halls alike, backing a truly diverse  list of artists ranging from Ariana Grande to Arthur Verocai; from Portugal. The Man to the Pacific Jazz Orchestra. Performing at venues as varied as Cafe OTO and the Coachella main stage, Marta revels in making music of all kinds, in all arenas.

Tracked via her home studio or on a scoring stage, Honer can be heard on countless scores including  Peter Pan and Wendy, Companion, Promising Young Woman, Cross, Reasonable Doubt and many more.

Credits include working with artists such as Beyoncé, Rosalía, the Yeah Yeah Yeahs, Travis Scott, Christina Aguilera, Chloe x Halle, Melanie Martinez, Michael Kiwanuka, MARINA, Thee Sacred Souls, The Marías, Amaarae, Zara Larsson, Shallou, Chicano Batman, Ben Folds, Ariana Grande, Lauryn Hill, Mariah Carey, Lewis Capaldi, RMR, Khalid & more.

Ensemble performances include the Hollywood Bowl Orchestra, Pacific Jazz Orchestra, San Bernardino Symphony, Wild Up, and Makaya McCraven’s In These Times.

As an original artist, in 2022 Honer released the critically-acclaimed duo album Recordings from the Åland Islands on International Anthem with synthesist Jeremiah Chiu. The album combines field recordings with improvisation on synthesizer and viola to recreate a specific feeling of space, time, and location.

The album was met with substantial critical acclaim upon release. At the time, Pitchfork expounded considerably upon the music’s sense of place and mystery: “​​In Chiu and Honer’s music, the natural world is half human conception, half unknowable Other: Spend enough time in it, and you will sense that intelligence, fleet and mysterious, moving just beneath the surface. Something is alive in their work, and it feels like it’s always rounding the next corner, just out of your reach.”

n 2023 the duo combined forces with legendary French musician Ariel Kalma after the BBC Radio show Late Junction reached out to commission new work. The result eventually evolved into a larger collaboration, culminating in the full length album The Closest Thing to Silence, which was released via International Anthem and praised as “heady, vibrant, and mysterious” by Complex Distractions. 

The duo released a new album called Different Rooms in July 2025 on International Anthem. The collection is an expansion of their ever-developing sound, and features contributions from Jeff Parker and Josh Johnson, as well as artwork from Sam Prekop. They toured both the US and EU/UK in promotion of the album including a sold out performance at the Barbican in London, and as a part of Lincoln Center’s Summer in the City series.