Annelotte Coster is a film composer and keyboardist based in Amsterdam. She has a degree in Pop Music from the Conservatory of Amsterdam and a Joint Masters in Composing for Film from the Netherlands Film Academy and the Conservatory of Amsterdam.

Over the years she has played in multiple bands. Since 2021, she performs with Thomas Azier, touring several countries in Europe. The combination of being both a composer and a live musician is one she cherishes deeply. Playing live brings new people, sounds and ideas that inspire her composition work and vice versa.

In 2026, Annelotte was nominated for a Gouden Kalf (Golden Calf) in the category of Best Music for her work in the feature film A Family (dir: Mees Peijnenburg). Other film credits include The Butlers (dir. Marlies Smeenge) that won the Prix Europa 2024 for Best Documentary Series and And Someone Else (dir: Vincent Tilanus), that premiered at the 2025 São Paulo International Film Festival.

She enjoys working in close collaboration with the director and the rest of the crew of each project to find an original sound palette that fits the identity of the film. She loves to be involved early on so that the music and film can grow together.