Hjalmarsson’s music has been described as “introvert, a bit ambient, beautifully made, [and ] delicate.”, in addition of being “Fascinating and enchanting!”. In his music, Hjalmarsson seeks to explore how our perception of sounds can be re-contextualized and transformed, magnifying our perception for details in sound.

Hjalmarsson’s music has been performed by performers, orchestras and ensembles worldwide on various occasion by groups such as Basel Sinfonietta (CH), BBC Scottish Symphony Orchestra (SCT), Uusinta ensemble (FI), Athelas sinfonietta (DK), Icelandic Symphony Orchestra (IS), Tinna Þorsteinsdóttir, Klang Ensemble (NL), Ensemble Adapter (D/IS) and Reykjavík Chamber Orchestra to name a few. In relation to festivals such as Cycle 2015 – Music and art festival, Nordlichter Biennal, CULTURESCAPES 2015 – Island, Tectonics Music Festival, Dark Music Days and at Peripherryberry concert series among others.

Composer Thrainn Hjalmarsson (b. 1987) studied composition at the Iceland Academy of the Arts and at the Royal Concervatory in Den Haag from 2009-2011 and is a current member of the composer’s collective S.L.Á.T.U.R and curator of the contemporary music concert series, Hljóðön at Hafnarborg,

Other projects include development of the musical instrument Thranophone in close collaboration with the visual artist Halldór Úlfarsson and composer Ingi Garðar Erlendsson, and collaboration on the video work, RELIEF (2015) with the visual artist Sigurður Guðjonsson.