Listen to Jóhannsson: Part 4.3 online. Jóhannsson: Part 4.3 is an Unknown language song and is sung by Jóhann Jóhannsson, Guðmundur Sigurðsson, HörÐur Bragason, Skúli Sverrisson, Matthías M.D. Hemstock, Caput Ensemble and Guðni Franzson. Jóhannsson: Part 4.3, from the album Work & Study Focus 2023, was released in the year 2023. The duration of the song is 1:12. Download Unknown songs online from JioSaavn.