Arnalds is one of Iceland’s top composers and best known in the UK for his score to the television show Broadchurch. Only just in his thirties, he has carved our a career that’s seen him work with the likes of Nils Fraham, as well as moonlight as one half of techno outfit Kiasmos – along with his friend Janus from electro-pop outfit Bloodgroup.

Last year he released the album Island Songs which saw him connect with local musicians across his home country to create a community-based portrait of Icelandic music.

Collaboration is a very important part of the way Arnalds approaches music. Just a couple of days after a companion film to the Island Songs project premiered in Iceland - and ahead of this year's Iceland Airwaves - we sat down with him to talk about why working with other musicians is so vital.

Next up for Arnalds is a show at the Royal Albert Hall show, which promises the debut of a “generative algorithm device”.

In our weekly podcast Talk the Line, we meet the people we love from music, film and television to find out about their passions and obsessions. A new episode drops every Friday - catch up with the episodes you've missed or subscribe via iTunes, Stitcher, Overcast or TuneIn.