His first album Peninsulator (2010) was described as "a joyful roller coaster of youthful, exuberant energy" by the critique Jakob Baekgaard of the international Jazz journal All About Jazz, and further: "Filled with confidence and zest, Flux translates their eclectic approach into melodic explosions where the swirling dance of the flute meets the edginess of strings and modern grooves.
"[1] Ferner started the duo Ferner/Juliusson in 2008 together with Per Gunnar Juliusson, fellow student at the Copenhagen Rhythmic Music Conservatory.
They seek a broad appeal with a melodic, personal and open expression, and they like to work in the field of tension between structure and freedom, both improvisational and compositional.
But most of all their aesthetic references give associations to many of the 1970 ECM album by guitarist Ralph Towner, John Abercrombie and Jan Garbarek as well as Pat Metheny.
– John Kellman, editor of the All About Jazz, and "The Jazzintro winning duo Ferner/Juliusson, with Per Arne Ferner on guitar and Per Gunnar Juliusson on the piano, proved to us that they are the best of this format since Bill Evans and Jim Hall recorded the albumUndercurrent."