As an improvising musician he has recorded with Robert Lewis and Gerald Gregory (First Takes 2010), Lee Barbour (Nonfiction 2012, and Influencers, Vol.1 2022), Jeremy Wolf (Understanding 2014, and The Wheel 2020), The Opposite of a Train (The Opposite of a Train 2009), and Shimmy Ghøster (Prelunch 2018). As a sideman on rock records he has recorded with Conor Donohue (Cayenne 2016, Let Love Contaminate 2019, and Stray Dogs (2024), Lindsay Holler (Matadero 2016, Holler 2026), Bill Carson (Bridges 2012, Mockingbird, Mockingbird 2015, and Corpus:Film Music 2008-2013 2014), Joel Hamilton (Feels Like We're Going To Win 2010) as well as multiple albums on percussion for Slow Runner and Michael Flynn.
As a performer of new music, he has premiered pieces by Ted Hearne, Michael Pisaro-Liu, Sam Sfirri, KCM Walker, Andy Akiho, Sean Friar, Philip White, and Nathan Koci. He has recorded pieces by Sam Sfirri (released on Wandelweiser und so weiter 2012), and Michael Pisaro-Liu (Tombstones: Live in Brooklyn Editions Verde 2022). His work with Ted Hearne has resulted in multiple recordings including Katrina Ballads (New Amsterdam Records 2010), Sound From The Bench (Cantaloupe Music 2017), the cello/percussion duet "Furtive Movements" from the album Hazy Heart Pump (New Focus Recordings 2019), Farming (Deathbomb Arc 2025), and earned him a Grammy Nomination (for Place released 2020: Best Chamber Music/Small Ensemble Performance).
As a composer, Wiltrout has written and performed over 50 pieces of music ranging from jazz to chamber ensemble. Very little of this has been recorded, of course.
Wiltrout is devoted to exploring the use of unconventional percussion and extended techniques and integrating the drum set into any musical scenario. He co-leads multiple jazz/improvized music groups and is the leader and originator of the band Rad Western. Wiltrout has performed with The Charleston Jazz Orchestra, Barrel Proof, Garage Cuban Band, Harry Allen, Lee Barbour, Ken Thomson Sextet, Tommy Gill, Asphalt Orchestra, The Crossing Choir, Gino Castillo and the Cuban Cowboys, Duda Lucena, Conor Donohue, Lindsay Holler, Matadero, Katrina Ballads, Your Bad Self, and the Opposite of a Train.