A solo record in every sense of the word, Müller wrote, recorded, arranged and produced Heliopause. It was mixed and mastered by Martyn Heyne at Lichte Studio in Berlin. The album is named after the boundary where the sun’s wind ceases to have influence. It is ultimately, the border of our solar system. The name struck a chord with Müller since the two voyagers sent on an exploratory mission 42 years ago, recently crossed the Heliopause, entering into interstellar space and losing power from our own sun. Müller recognised herself in this moment, not only approaching the same age, but also breaking new ground; having relied on collaborating with so many other stars and now venturing into the unknown with her first solo record.

Boldly opening the album with Being Anne, it sees Müller embrace her new found freedom with the most experimental piece on the record, placing the cello in a completely new context. Playing the strings of a broken down piano with a plectrum and scratching parts of the key mechanism to produce a rhythm, the once lost instrument is given a new lease of life among looped cello drones and drums. “I used the sounds of a tiny piano I got from my mother that she bought when she was a student and didn’t have any money. Later it stood for years in our little summer garden house, where I practiced on it constantly for my piano lessons. Even though it’s old and not in the best shape, I love the way it sounds and call it my little circus piano”.