KBAQ Production Studio

Programs  Upcoming Recordings  Collaborative Projects  Contact Us    Staff Bios

Central Sound at Arizona PBS productions can be heard on 89.5 KBAQ-FM as well as on Classical Arizona PBS — DTV channel 8.5 and on our award-winning “Classical Arizona PBS” mobile app, available on iOS and Android.


Arizona Encore!

Showcasing Arizona’s Premier Performances

Broadcast every Tuesday at 7 pm, Arizona Encore features professional caliber performances from throughout the state.

August 1

Local talent takes the stage in this program of works recorded at Camelback Bible Church. Enjoy performances by the NAU Shrine of the Ages Choir, the Phoenix Girls Chorus, the Phoenix Children’s Chorus, and the musicians of the Arizona Bach Festival.

  • Bach - Sonata No. 4 in C Minor, BWV 1017
    • IV. Allegro
  • Vivaldi - Mundi Rector
  • Bach - The Passion According to John
  • Schubert - Ständchen
  • Brahms - Liebeslieder Walzer, Op. 52
  • Brahms - Neue Liebeslieder Walzer, Op. 65
    • XIII. Nein, geliebter, setze dich
  • Brahms - Liebeslieder Walzer, Op. 52
    • XIII. Vögelein durchrauscht die Luft
  • Lauridsen - Prayer
  • Anonymous - Hold On!
  • Anonymous - God's Gonna Set This World On Fire
  • Anonymous - Hark I Hear The Harps Eternal
August 8

Performances by the American String Quartet, the West Valley Symphony, and artists of the Downtown Chamber Series.

  • Ravel - String Quartet in F Major
  • Saint-Säens - "Bacchanale" from Samson and Delilah
  • Mendelssohn - Piano trio in D Minor, Op. 49
August 15

Enjoy Romantic and Modern piano works as performed by Conrad Tao, Orli Shaham, and Joyce Yang.

  • Rachmaninoff - Sonata No. 2 in B-flat Minor, Op. 36
  • Rachmaninoff - Étude-tableaux in A Minor, Op. 39, No. 2
  • Schumann - Romanze in F-sharp Major, Op. 28
  • Lang - Cage
  • Gershwin - The Man I Love
  • Gershwin - Piano Concerto in F Major
    • I. Allegro
August 22

Celebrate the 34th season of the Grand Canyon Music Festival with performances by Robert Bonfiglio, the Catalyst String Quartet, and the Strata Quartet. Includes an interview with festival co-founder Clare Hoffman.

  • Thielemans - Bluesette
  • Jobim - Chega de Saudade
  • Schaefer - Blitzkrieg
  • Tenakhongva/Reed - Puhútawi
August 29

Concluding the two part series highlighting the Grand Canyon Music Festival, enjoy performances from the Catalyst String Quartet, flutist Clare Hoffman, and the Speltz family.

  • Golijov - Tenebrae
  • Bach, W.F.E. - Trio in G Major for Flute, Violin, and Viola
  • Beethoven - String Quartet No. 3 in D Major, Op. 18, No. 3
  • Schubert -- String Quintet in C Major, D. 956
    • IV. Allegretto - Più allegro

The Phoenix Symphony

The 2017 Phoenix Symphony broadcast series has concluded. Broadcasts of this world class orchestra will resume in March 2018 and feature performances from the Phoenix Symphony’s 70th anniversary season. For complete details about upcoming events and broadcasts please visit the symphony’s website.

Phoenix Symphony broadcasts are made possible in part by equipment provided by DTS, Incorporated. Radio Broadcasts are presented in DTS Neural Surround™. Broadcasts of DTV 8.5 Classical Arizona PBS are in Dolby Digital Discrete Surround Sound. These technologies bring the experience of sitting in the best seat of a performance hall directly to listeners.

ASU In Concert

Enjoy the talent of the Arizona State University School of Music, every Thursday at 7 p.m., as ASU in Concert highlights the best performances from student ensembles, faculty, and guest artists. The program returns to the airwaves on Thursday, September 7, 2017. Listen to broadcasts from this past season “on demand” - download the Classical Arizona PBS mobile app today!

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Licensed by: Rio Salado College & Arizona State University


Upcoming Recordings



Central Sound at Arizona PBS is dedicated to capturing classical and acoustic music performances of the highest professional caliber, taking special care to preserve the authenticity of the experience. As an award-winning premier provider of audio-media services, Central Sound is committed to serving as a central hub for notable musical events in the community, bringing concerts of internationally acclaimed artists, performances by leading ASU faculty and the next generation of young musicians to thousands of listeners. Striving for that quintessential sound, we produce numerous programs for local and national broadcast, including the airwaves of KBAQ-FM, Classical Arizona PBS, as well as exceptional television audio, featured on Arizona PBS and beyond.

Contact Us


Central Sound at Arizona PBS continues to appreciate the generous support received from individuals and their companies or organizations through underwriting, planned giving and individual tax-deductible gifts in any amount. We bring classical music to the community through your contributions.

Please contact us to renew and continue your support, become one of our new friends, or with questions about Central Sound at Arizona PBS.


Phone: 602-496-1164

Fax: 602-496-6050

Central Sound at Arizona PBS
555 N Central Ave Suite 500
Phoenix AZ 85004

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Staff Bios

Alex Kosiorek, Manager

A published audio engineer, digital media producer and manager, Alex Kosiorek utilizes advanced production techniques to excel in project management. His multi-faceted expertise ranges from codec implementation (including online streaming, surround sound, and live broadcasting), the direction of short and long form productions, system design, production of multimedia applications, assurance of copyright compliance, as well as a conservatory-trained musician. Alex received degrees in music and audio recording from the Cleveland Institute of Music and Case Western Reserve University, in addition to continued graduate education in intellectual property and business from the University of Miami-Florida and Bowling Green State University to ensure compliance with legislation.

With many years of experience combined with a gaze toward the future, Alex remains at the forefront of the industry. His ground-breaking accomplishments include production of one of the first high-quality Internet streams (which received world-wide recognition), significant contribution to the creation of the first US radio station to commence 5.1 surround sound programming, and leadership of the first design team to complete the THX PM3 Certified Studio in a music conservatory worldwide.

Recognized throughout the professional community, Alex previously contributed to trade publications and developed presentations for Radio Magazine, the Audio Engineering Society, National Association of Broadcasters, and Technology for Music Education. Early highlights of Alex’s career include engineering for the former Radio Smithsonian and post producing the programs ‘Folkmasters’ and ‘Jazz Smithsonian.’ He began producing audio for broadcast for the 1996 Atlanta Summer Olympics. Other notable achievements include serving as senior engineer for the Cincinnati Symphony Orchestra, May Festival Chorus, New World Symphony, Cincinnati Opera and others. His production repertoire includes several commercial recordings for ensembles such as aforementioned in addition to the Cincinnati Ballet Orchestra, Vocal Arts Ensemble and many individual artists/groups of various genres. Formerly the Director of Recording Services for the Cleveland institute of Music and Senior Engineer of the Aspen Music Festival, Alex has produced thousands of hours of media content (including surround sound) for broadcast and online distribution. In addition to these positions, Alex regularly contracts as a professional independent engineer and consultant, and consistently ensures the success of projects from inception to conclusion.


Jeanne Barron, Producer

Jeanne Barron’s love for music developed at a very young age. She began playing the acoustic guitar at age 8. Her penchant for the engineering side of music developed through exposure to technical theatre as a member of her high school stage crew and participation in community theatre productions; it was a passion that would stay with her throughout her college years. While attending Arizona State University to receive both a B.A. in Music and a B.A. in Theatre, she was a member of the Sun Devil Marching Band as well as a sound designer for the Department of Theatre. After graduating, Jeanne continued her association with ASU including a position as audio engineer for the ASU Technology Based Learning and Research department, where she was responsible for the recording of location video shoots and audio post production editing. The recipient of two AriZoni awards for theatrical sound design, she was a theatre technician for both Gammage Auditorium and Rhino Staging. She continued her career in broadcasting as program director of Talk One Network, undertaking the production of nationally syndicated talk radio shows. In 2005, Jeanne returned to Arizona PBS in the Broadcast Operations department and has since joined Central Sound as the Producer of Audio Programming.


Eric Xu, Engineer

Eric Xu started out playing violin and recording his high school orchestras and jazz bands in his spare time. As a graduate of New York University with a B.M. in Music Technology, he apprenticed for tonmeister Leszek Wojcik at the Carnegie Hall Recording Studio as well as Radio City Music Hall. Afterwards, Leszek took him on as an engineer and he honed his skills working with Chamber Music Society at Lincoln Center, Metropolitan Opera, American Symphony, and many others. At the same time, he spent summers as a recording engineer at the Aspen Music Festival.

Eric later became audio and systems engineer at the Metropolitan Museum of Art’s Concerts & Lectures department, leading the audio crew in countless productions for some of the nation’s leading talents—including John Leventhal and Rosanne Cash, John Zorn, and Steve Reich. He now resides warmly in Phoenix, attending to his recording duties throughout the valley and the state.

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