Louise Alenius is a Danish composer, artist, and performer. She made her mark on the Danish classical music scene when, in 2009, she was commissioned by the Royal Danish Ballet to write new music for the second act of the Bournonville ballet Napoli from 1842. It was the start of a productive decade for Alenius in the realm of art music, working closely with the Royal Danish Theater.
As a composer, Louise Alenius has created operas, ballet music, choral pieces, string quartets, film and advertising music, as well as the critically acclaimed series of one-on-one petit shows, Porøset, performed at the Royal Danish Theater for several years. In 2019, the decade culminated with the award of Denmark's largest single cultural prize, the Honorary Award Carl Nielsen and Anne Marie Carl-Nielsen Legat, which Louise Alenius received for her first opera Silent Zone and the solo exhibition of her installation work Tête at the SMK, Denmark's national gallery. In 2022, Alenius premiered her second opera, MANUALEN, at the Royal Danish Opera House's main stage, an opera which deals with assisted suicide.