About
Whether you are a boat lost at sea or a soul in need of warmth, River Mann is here to ferry you across the waters. Led by singer-songwriter William Thomas, this exciting new project out of Colorado’s vibrant music scene will move you through sound, story, and the subconscious.
Taking inspiration from American roots music, contemporary folk, progressive rock, and classical music, River Mann’s transcendent and energetic live performances promise a journey of dancing, swooning, smiling, and moments of introspection. Full of heart and spirit, this music delves into the human condition with sincerity and compassion.
River Mann’s sound is defined not only by Will’s songwriting prowess but also by exceptional musicianship and genuine camaraderie, with the soulful playing Madalyn McCoy’s violin and Gabriel Anthony’s slide guitar. James Davis brings the thunder and the groove on bass, while on the kit—sporting one of the finest mustaches west of the Mississippi—is one of Colorado’s most explosive young drummers, Mr. Benjamin Waterson. The members of River Mann beckon you to the unknown—the beautiful and the dark—with revelry and happenstance, to a distant land of your own exploration and love.
William Thomas — Lead Vocals & Guitar

Gabriel Anthony Cwern — Lead Guitar & Vocals

Madalyn McCoy — Violin

James Davis Maynard — Bass & Vocals

Benjamin Waterson — Drums & Percussion

News
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Unison 2025
River Mann is very excited to announce that the band will be playing at the 2025 Unison fesitval in New Mexico. This our first show at a festival of this magnitude, and we couldn’t be more stoked. Learn more details here!
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“Beginning of Time” Now Streaming!
We’re happy to share that River Mann’s debut single, “Beginning of Time,” is now streaming! This is an exciting moment for us, but it’s just the start, and we’re headed right back into the studio for more work on an upcoming EP. Stay tuned…
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Music
“Beginning of Time” Single
Photo & Video
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Calendar
2025
January
Saturday the 4th @ Knotted Root, Nederland, CO (Link)Friday the 31st @ Larimer Lounge, Denver, CO (Tickets)
February
Saturday the 22nd @ The Riverside, Boulder, CO
March
Sunday the 16th @ Wibby Brewing, Longmont, CO
May
Saturday the 10th with The Pamlico Sound & Ligedelic @ Junkyard Social Club, Boulder, CO (Tickets)Saturday the 17th @ Avery Brewing, Boulder, CO (Link)Saturday the 24th, with Ghosts of Caroline @ Boulder Creekfest, Boulder, CO (Link)Monday the 26th @ Bolder Boulder, Boulder, CO
June
- Friday the 13th with The Trouble Notes & Bottlerocket Hurricane Collective @ The Black Buzzard, Oskar Blues, Denver, CO (Tickets)
- Tuesday the 24th @ Friends of Folk Fest, Estes Park, CO (Link)
July
- Friday the 4th @ Jamestown 4th of July, Jamestown, CO (Link)
- Saturday the 12th @ The Boulder Band Shell, Boulder, CO (Link)
August
- Friday the 15th @ The Velvet Elk, Boulder, CO

© 2022–2025 River Mann