• Concerto Performance of Paul Creston’s Concertino for Marimba and Orchestra with the San Juan Symphony, Telluride and Durango, Colorado, November 2007.
• Showcase Concert Performance of The American Gamelan Music of Lou Harrison at the Percussive Arts Society International Convention in Columbus, Ohio, November 2007. Included a tour with pre-performances at the University of Michigan, Cleveland State University and Capital University.
  
• Dunn/Pennington trumpet and percussion duo. Recent tour included performances at the University of Kansas, Kansas State University, Wichita State University and Missouri State University, Northern Arizona State University and Fort Lewis College, September 2007.
  
• International Trumpet Guild, New Works Recital, May 30, 2007, University of Massachusetts Amherst, David Crumb, Awakening for Trumpet and Percussion.
  
• Colorado Music Educators Association 2005 Conference, Fort Lewis College Jazz Ensemble, Vibraphone Soloist, January, 2005.
  
• Showcase Concert Performance of Voices in Time (International Music Commissioned for Two Percussionists and Choir) at the Percussive Arts Society International Convention in Louisville, Kentucky, November 2003.
  San Juan Symphony-Principal Timpanist 1992-2008. (Marimba Concerto soloist, 1995, 2007, Vibraphone Concerto Soloist, 2008).
  
• Music in the Mountains International Music Festival, (Dallas Symphony and Fort Worth Symphony Chamber musicians); Principal Timpanist. 1993 - present. (Marimba Concerto soloist, summer 1996, 2000).
  
• Santa Fe Opera – Section Percussionist (Sabbatical Replacement) 1998-2000.
  
• A Prairie Home Companion-Summer 1999 percussion performance with Durango Children’s Choir,
  live broadcast.
  
• Santa Fe Desert Chorale, Percussion Soloist, Summer Festival, 2006, Santa Fe, New Mexico.
  
• Flagstaff Festival of the Arts; Irwin Hoffman, Conductor. 1995 - 1997.
  
• Phoenix Symphony Orchestra, Extra Percussion. James Sedares, Music Director and Conductor; 1988 - 1992.
  
• Arizona Opera, Principal Timpanist, Johan van der Merwe, Music Director; 1991 - 1992.
  
• Chamber Orchestra Arizona, Arthur Weisberg, Music Director 1989 – 1991.
  
• Ballet Arizona; 1988 - 1992.
  
• Ensemble 21, Arthur Weisberg, Artistic Director; 1988-1992.
  
• Sun City Symphony, Principal Percussionist, James Yestadt, Conductor; 1989 - 1992.
  
• Ann Arbor Symphony Orchestra, Carl St. Clair, Conductor; 1986 - 1988.
  
• Ann Arbor Contemporary Chamber Orchestra, Carl Dehler, Conductor; 1986-1987.
  
• Saginaw Symphony Orchestra, Leo Najar, Conductor; 1987-1988.
  
• Tucson Symphony Orchestra, William McGlaughlin, Conductor; 1984-1986 (Extra Percussion).

.

• Enough Said, [Two Solo Percussionists and Jazz Orchestra]-Premiere-February, 28, 2008-Durango, Colorado
  
• Seeing the Forest for the Trees: The Art of Mary Ellen Long-Original (HD) Film Music Score composition-Premiere: February 22, 2008-Durango, Colorado
  
• The Power of the Pawn-World for Soprano, Tenor, Piano and Marimba-Premiere: January 27, 2008-
  Fort Lewis College Roshong Recital Hall-3pm
  Kurt Weill, Zaubernaucht-U.S. Premiere, Animas Music Festival, June 2006.
  
• Awakening (from Old News) David Crumb, Premiered at Millennium Festival University of Oregon, November, 2000.
  
• Original Soundtrack for the motion picture Dinosaurs - 1991. Produced by Touchstone Pictures.
  David Chu, conductor. Percussion and timpani.
  
• Blessed Be The Night and Blessed Are They– World premieres, Aptos, California – August, 2002.
  (Composer and performer).
  
• Desert Songs – (Performance) (Colorado premiere) Colorado Music Educators Conference –
  Colorado Springs, Colorado, January, 2002.
  
• Dreams from a Bayou (Performance) by Michael Udow for Flute and Percussion premiered at the National Association of College Wind and Percussion Instructors Symposium, Tallahassee, Florida, January, 1997.
  Five Popular Spanish Songs – Manuel de Falla – (Arranged for trumpets and percussion) – J. Pennington – Premiered, 2000 – Durango, Colorado.
  
• Awakening-(from Old News) – World Premiere by composer David Crumb for the millennium Festival – University of Oregon, November, 2000. (Performer).
  
• Awakening - World Premiere - Rome, Italy - San Gregorio Cathedral (Composer/Performer)
  with Cyprian Consiglio - October 2000.
  
• Glorioso - World Premiere - Florence, Italy - San Minato Monastery with
  Cyprian Consiglio - October 2000 – (Performer).
  
• World Premier of Michael Udow's The Shattered Mirror (1987), University of Michigan Percussion Ensemble.
  
• United States Premier of Mauricio Kagel's Ludwig Van (1970) University of Michigan Percussion Ensemble, 1986.

• Enough Said, Sean Statser [Two Solo Percussionists and Jazz Orchestra]
  
• Song of Luke, Cyprian Consiglio [Choir, Chamber Orchestra, Soloists]
  
• Echoes of Old Truths, Cyprian Consiglio [Choir, Chamber Choir, Soloists]
  
• Anathara, Cyprian Consiglio [Chamber Orchestra, Schola]
  
• Desert Songs I, II, III – Bradley Bodine [Choir, 2 Solo Percussionists]
  
• Book of Gems-Emmanuel Sejourne [Choir, 2 Solo Percussionists]
  
• Gutenes Signo- Anders Ă…strand [Choir, 2 Solo Percussionists]
  
• Prayer (World Premiere) by Cesar Bauvallet, for Vibraphone, Trombone, Bata Drum Ensemble, Congas, Choir. Commissioned with a grant received from the Colorado Council on the Arts, and the National Endowment for the Arts. Premiered at the Animas Music Festival June 1, 1996, Fort Lewis College.
  
• Edward C. Peterson Tree, Katie Freiberg [Soprano and Marimba] premiered 1999.