Charley joined Colorado Public Radio in 1994 after having spent 19 years at KVOD when it was a commercial station. Charley hosts, writes and produces “Colorado Spotlight” Monday through Friday on CPR's classical music. He writes program notes for numerous orchestras, including the Arapahoe Philharmonic, the Jefferson Symphony Orchestra, the Longmont Symphony Orchestra, the Denver Young Artists Orchestra, and the Oakland East Bay Symphony. He is also the pronouncer for the Colorado State Spelling Bee.

St. Martin's Chamber Choir is a professional, non-church affiliated ensemble of 24 singers. The group was founded in 1994, and takes its name from the site of its first concerts, St. Martin's Chapel at St. John's Episcopal Cathedral in Denver, Colorado.

St. Martin’s is led by founder and Artistic Director Timothy J. Krueger. Now in its 17th season, the choir presents imaginative concert programs drawn from choral literature which spans the centuries, from Renaissance motets, through 18th century Baroque and Classical works and Romantic-era partsongs, to masterworks of the 20th century and new pieces composed expressly for St. Martin's. The group’s repertoire is largely a cappella, or without accompaniment, but St. Martin’s has also notably collaborated with such groups as the Boulder Philharmonic Orchestra, the Baroque Chamber Orchestra of Colorado, the Confluence String Quartet, and in 2008, the Musica Sacra Chamber Orchestra of Augustana Arts.  The choir was also featured at the National Performing Arts Convention, held in Denver in June, 2008.

Active as a concerto soloist, Ms Jennings has appeared with over fifty orchestras including the Utah and Houston Symphonies, Orchestra 2001, Park Avenue Chamber Orchestra, Flint Symphony, Spokane Symphony, Orchestra de Camera (Mexico), and Pro Musica (UK). In 2009 she premiered concertos written for her by Carter Pann and Laura Elise Schwendinger. Recent chamber music festivals include Strings in the Mountains (CO), Cascade Head (OR), OK Mozart (OK), Chamber Music Quad Cities (IA), and the Bowdoin International Festival (ME).

As broad-gauged in her musical pursuits as she is in her repertoire choices, Ms. Jennings is Principal Flute with the River Oaks Chamber Orchestra (Houston) and collaborates regularly with pianist Lura Johnson and guitarist Jonathan Leathwood. She has worked with such diverse artists such as Jethro Tull, David Parsons Dance Company, and members of the Pilobolus. In addition, she is the founder of Oklahoma City’s Brightmusic Series. Chamber music partners have included So Percussion, the Brentano and Takács Quartets, soprano Lucy Shelton, pianist Simone Dinnerstein, and cellist Colin Carr.