Arianna has got a classical piano diploma in her pocket and has been happily singing in choirs, dreaming of getting a chance to sing something else since she was a teenager (as most of teenagers). She sings both backing and lead vocals as well as is involved in making the songs by giving input and iterating the music with Sverrir when it is about making them ready for the public. If there is a piano to play in the song, that is her task to deal with.
While Sverrir is Icelandic, Arianna is Italian. They both live in Sweden, where they have had an intertwined history since 2002. They finally decided to become a band in August 2017, after having had lots of fun making Unravel together.