The Poudre River Irregulars Jazz Band -- As heard on KUVO radio




 The Poudre River Irregulars play at a wide variety of events. Public gigs include a variety of scheduled appearances (concerts sponsored by jazz societies, for instance), and a recurring monthly gig to great crowds at Avogadro's Number that takes place on the First Friday of every month.



You can book the Poudre River Irregulars. We play for parties, weddings, swing dances, church services and funeral marches, plus more!  In addition, the "Mini-PRI", a stripped-down version of the band, is available for groups with tight budgets. To arrange private bookings, use Contact above in the menu.

We hope you'll come and hear us play.

The "Regular Irregulars" are Charlie Smith and/or Larry Lagerberg on trumpet, Len Kellogg on trombone, Clark Burnside on clarinet, Ray Leake on piano, Alan Sparks on bass, Rory Thomas on banjo, and Oscar DeZoto on drums.

First Friday at Avo's 

Outdoor event

Tickets available at the door at $15 per person


Purchase tickets at


2pm to 4pm -- Next date will be announced

at Avogadro's Number located at

605 S. Mason, Fort Collins, 

Hot Jazz with the Regular Irregulars

Sponsored by the

Northern Colorado Traditional Jazz Society

Become a member today!



                Pandemic precautions will be consistent with current State and Local guidance.

Upcoming Gigs:

Nov 7   All-saints Sunday @ All-Saints Episcopal church  9am service

3448 N Taft Ave, Loveland, CO