After high school, Åström studied music, moved to Stockholm, and became a session musician for several artists. Åström plays bass, guitar, keyboards and drums. After Anders Bagge, already a well-known producer and songwriter, heard a couple of Åström's songs, he invited Åström to collaborate with him on some writing/recording projects. Later in 2001, Bagge and Åström began to write and produce together on a regular basis. Åström eventually signed to Bagge's record company Murlyn Music Group.
From its inception in 2009 to the last season in 2015, Peer worked on the wildly popular hit television series Glee,[1] where he served as co-writer and co-music producer. Glee instantly became a cultural phenomena and earned two #1 Billboard singles, eight #1 iTunes singles, over 70 million singles and 18 million albums sold worldwide, and 4 Grammy nominations to name a few accolades. All this while also setting a world record of 214 Billboard hits by a single artist. During the monumental and widely-watched 45th Super Bowl, the track See The USA ft. Glee Cast, produced by Peer, debuted.
Peer co-founded Epidemic Sound in 2009. It is the world's biggest music supplier for online content creators, i.e. YouTube, TikTok, Instagram, Facebook, etc. In 2021 Blackstone partnered with Epidemic Sound[6] to help accelerate its growth and execute its mission. There are currently 2 billion daily views of Youtube videos including Epidemic Sound music, 500 million daily views of TikTok videos, and 40 million daily plays on music streaming platforms.