SYML-Welsh for "simple" makes music that taps into the instincts that drive us to places of sanctuary, whether that be a place or a person. Born and raised in Seattle, Fennell studied piano and became a self-taught producer, programmer, and guitarist. This May marked the fifth anniversary of his self-titled debut album, which included the platinum-selling song "Where's My Love" and the Gold Record fan favorite, "Girl," and one year since his sophomore album, The Day My Father Died, which was recorded and produced with fellow Seattle-native Phil Ek (Band of Horses, Father John Misty, Fleet Foxes) and features Elbow's Guy Garvey, Lucius, Sara Watkins of Nickel Creek, and Charlotte Lawrence. In the last year, he was also featured on Lana Del Rey's song, "Paris, TX," from her Grammy-nominated album Did You Know That There's A Tunnel Under Ocean Blvd, and realized several other notable collaborations including UK-electronic artist George Fitzgerald, Latin Grammy-nominated Colombian artist Elsa y Elmar. In February 2024, he launched his imprint, FIN. Recordings, a new venture in collaboration with his label, Nettwerk Music Group, and management team, Good Harbor Music.

Says Fennell about Infinity, "Sometimes, songs are wandering souls with no home, and it's not until enough of them are written that the home is realized. I have a proud obsession with all things apocalyptic and the doom and wonder of an ever-expanding universe. This group of songs is an ode to the absurdity of human existence and my fondness for it. My inspirations were very cinematic ranging from big blaring soundscapes to more gentle, dusty settings like Ennio Morricone was so gifted in painting. I am fascinated by what humans are capable of, especially the stories we tell ourselves to explain our world and the space around it. Importantly, I am thankful for the creative space to make art without rules or expectation.