Over the years, Magnus has achieved two gold records with Hammerfall, Grammy nominations, Euro Awards, Artist of the Year, Save the Earth Prize, the Adlerbertska Cultural Grant, and a Rotary award for his dedicated involvement. He has also organized extraordinary cultural events, where he has performed with the Gothenburg Symphony Orchestra, the Royal Philharmonic, and has even performed a solo bass ballet with the Gothenburg Opera. Last but not least, he is the creator of the renowned project Culture Meets Industry.

The Bass of the Heart is an autobiography about Magnus Rosén's life as a rock musician. So far, he has traveled the world countless times, mostly with the band Hammerfall, but also as a solo bassist. Magnus's music career has allowed him to experience many different cultures, even from the inside. In this book, you can read about how he became a Jute Ambassador. When he played in La Paz, Bolivia, 4,200 meters above sea level, where oxygen was offered due to the thin air. Or when he participated in a blues festival in the Himalayas and ended up on a full page of Himalaya Daily News with the word "success" in the headlines.

Magnus is a groundbreaking and unique rock musician who has played with everything from the heavy metal band Hammerfall to the Gothenburg Opera Symphony Orchestra. He shares both beautiful moments and the dark side of the music world. The murder of their manager Lelle, who disappeared in the middle of a performance. Read more about what happened in the band and who the likely killer is, according to Leif GW Persson.