Het Oostertrio, Het Oostertrio, formed in 2018, consists of Sophie Schreurs (clarinet), Lotte Grotholt (viola) and Maria Nikiforov (piano). All three of them study at the bachelor's degree program at the Conservatorium van Amsterdam. Their repertoire varies from classical to modern and post-modern. They have traveled to many cities in the Netherlands to perform including pieces by composers such as Paul Juon and Max Bruch.
The Duo Due, formed in 2018, consists of Zuzanna Skowronska (violin) and Lotte Grotholt (viola). They met at the Conservatory of Amsterdam, where both are studying. Their repertoire consists of pieces by composers such as: Bartok, Sibelius and Martinu. They perform throughout the Netherlands.