Concert was designed in 2005 by Jørn Utzon for Fritz Hansen and is available in two sizes. The ceiling lamp is made up of four layers of shades and a steel dish mounted on a glass device made of acid-treated glassware. This layer-by-layer technique, combined with the glass, allows a soft light to be reflected in the gaps between the arms. The bottom shade keeps the light down and the dish softens the light while preventing glare, no matter what angle the lamp is hanging at. Concert ceiling lamp has a semi-matt lacquered finish and a textile cord with hook loop. The design for Concert follows Jørn Utzon's characterful design language and evokes his most famous work, the Sydney Opera House.