[1] By age four, she became a student of violinist Arve Tellefsen,[1][3] who has called Mari and Håkon Samuelsen "among the greatest string music talents in Norway".
[1] Samuelsen later studied at the Barratt Due Institute of Music in Oslo under the tutelage of violinist Stephan Barratt-Due.
Max Richter said of Samuelsen: "Apart from being a wonderful violinist, Mari has an instinctive understanding of my compositional world and an uncanny ability to communicate my intentions".
[5] In 2014, Mari and Håkon performed the world premiere of Pas de Deux, a double concerto they commissioned James Horner to compose.
The album includes works from Max Richter, Johann Sebastian Bach, Brian Eno, and Philip Glass, among others.