[3] After high school, he attended Seattle Pacific University[4] and graduated with a degree in music education with an emphasis in percussion.

[5] In 2005, Fennell finished his first solo album “Safety Songs.” By the end of that year, he formed the band Barcelona with Brian Eichelberger, Chris Bristol, and Rhett Stonelake.

SYML's singles "Where's My Love", "Fear of Water" and "Body" were featured in the American supernatural drama television series Shadowhunters.

[14] SYML collaborated with Lana Del Rey on the song “Paris, Texas” which was released on March 24, 2023 on the album Did You Know That There's a Tunnel Under Ocean Blvd.

The album was produced by Phil Ek and includes collaborations with Lucius, Guy Garvey, Sara Watkins, and Charlotte Lawrence.