Briggan has performed and recorded with musicians such as John Zorn, Wayne Horvitz, Bill Frisell, Eyvind Kang, Robin Holcomb, Anthony Coleman, Steven Bernstein's "Sex Mob", Madeski Martin and Wood, Ikue Mori, Bobby Previte, Jim Black, Hal Willner, Joey Baron, the New York Composer’s Orchestra and many others.

Briggan has made three records as a leader on Knitting Factory Records and has appeared on over thirty other records as a sideman. He has been reviewed and interviewed in jazz and new music publications in the United States, Europe and Japan.

In recent Downbeat Magazine Critic's Polls, “Sex Mob” was awarded “Best Beyond Band” and “Best Acoustic Jazz Band TWR” in 2002; and Briggan was named in the “Alto Saxophone TWR” category in both 2002 and 2003.

“Good Kitty”, the first band in which Briggan was the leader, featured an unusual trio of himself on alto saxophone, clarinet/tenor saxophonist Chris Speed, and drummer Mike Sarin. Briggan recorded his first CD as a leader for Knitting Factory Records with “Good Kitty” in 1995.

Briggan’s next recording project “300” featured another trio which reunited Briggan with “Pig Pen” leader Wayne Horvitz on keyboards, and added fellow “Sex Mob” member Kenny Wollesen on drums. Recording for the Knitting Factory record label in 1997, “300” garnered notable critical acclaim for their self-titled debut recording culminating in making the “Jazziz Magazine Critic’s Top-Ten recordings of 1998” list twice.

While at Cornish College of the Arts, Briggan studied electronic music and advanced theory with composer/professor Jarrad Powell. In 1999 he recorded “Descending to End” which is a solo studio project that was made over the course of nine months and received excellent reviews by the music press.

As a composer, Briggan was commissioned by "Roulette" in New York with funds provided by the Jerome Foundation to present an program of new music. A through-composed chamber piece in eight parts, for eight musicians and conductor titled “Lensing”, was premiered at Roulette in April 2002.

Briggan continues to work with electronic music. He has released the CDs “Object #1” and "Object#2" which are the first in a series of releases each dedicated and inspired by the work of a particular visual artist. He also works with live electronics in several duo and trio settings with the likes of Wayne Horvitz, Jim Black, Skuli Sverrisson and others. He is involved with a varitey of collaborations with the visual artist Raha Raissnia which all fall under the title "Systems" which has appeared in New York City galleries and recently at Anthology Film Archives. His electronic music was recently featured on WPS1 Art Radio.