cultivating a love
of the musical arts

In 1965 a group of musicians, led by Florida Southern College professor Dr. Ken Anderson and Lakeland businessman Jay Erwin, decided to organize an orchestra to provide classical music for their community.

With Erwin as conductor, the group called itself the Lakeland Civic Symphony and began with 30 musicians and an audience consisting of family members and a few friends. Their financial base consisted of a large glass jar, marked “donations,” which stood at the concert hall door.

In 1987, the organization changed its name to the Imperial Symphony Orchestra with an intent to better reflect its place in Polk County.

Throughout its history, the ISO has been blessed with enthusiastic and forward-looking volunteer leaders, hard-working staff, and devoted musicians. In 1994, Governor Lawton Chiles publicly saluted this commitment when he presented the ISO with the prestigious Governor’s Award for Voluntarism in the Arts, recognizing its contribution of more than 22,500 volunteer hours in one year alone.

In 2021, the organization was reimagined as the Lakeland Symphony Orchestra and underwent a rebrand to align its look, feel, and message with its purpose and commitment to inclusion.

The Lakeland Symphony Orchestra exists to educate, entertain and inspire audiences and enrich the lives of the people of Polk County through the high-quality performance of symphonic music.

Our Mission

we are a powerful, stimulating, steadfast, collective harmony.


We are dynamic, auditioned, professional musicians, united to interpret music that moves people.


The symphony is an immersive experience that engages the senses.


We are a resilient presence committed to cultural enrichment and preserving the art for future generations.


We create for everyone.


We connect our community through a shared appreciation for the arts.

is invited

At the Lakeland Symphony Orchestra, we create powerful musical experiences that connect our community and enrich our lives. Join us. Find your connection.

lakeland symphony orchestra

about lakeland symphony orchestra

meet the

The LSO is composed of dynamic, auditioned, professional musicians who draw upon deep reservoirs of passion and skill to interpret music that moves people. We are a catalyst in our community, igniting creativity, provoking thought, inspiring action, and sparking emotion.


Our leaders come together from varied backgrounds to support the Lakeland Symphony Orchestra in its mission to connect, enrich, educate, and entertain. We are led by a president, vice president, treasurer, and secretary, with oversight from an advisory board and a board of directors.

Operationally, we’re guided by our Music Director and Conductor, Mark Thielen, and our Executive Director, Ashley Miller, with support from our Orchestra and Office Manager, Christine Collister.


Robert Berganza

Chuck McDanal
Vice President

Ashley Bailey
Vice President

Margaret Parry

Lu Fitzwater

Lori Powell
Past President


Shannon Abitbol

Stephen Bates

Christina Boyce

Lesley Chambers

Steve Githens

Greg Sale

Don West

Richard Widick


Kelly Aiken

Todd Baylis

Joan Buccino

Sal Campisi, Jr.

Deedre Daniel

Patrick Fagan

Amy Laderer

Brandi McLaughlin

Meredith Prokuski

Monique Quick

Maurice Raymond

Art Rowbotham

Bill Schichtel

Sandra Sheets, Esq.

Henry E. Tucker


Jay Erwin*

Mrs. J. Fred (Valda) Guess*

Charles R. Mayer

Robert V. Parker

Dr. F.D. Rumscheidt

George H. Anderson, Jr.

James F. Slutz

Julie Rogers

Cecil Rosenblum

Keith Sheldon

Bruce Renfroe, Jr. *

Bobby Golden

Susan Cruz

Cecilia Moore

Dale Gardner Jacobs

Anita Maxwell

Julius Hobbs

Andy Hernandez

Dr. Tom McLaughlin*

Rob Sansome

Howard LeVasseur

Brock Self

Martha Linder

Seth McKeel

Art Rowbotham

Monique Quick

Curt Wheeler

Thomas K. Mack

Lori Powell

Lu Fitzwater

Mike Ibarra

Greg Sale

Todd Baylis

Brad Lunz

Arletta Black Torres

Lori Powell

*Denotes deceased

Mark Thielen



Mark Thielen is a 40 year resident of Polk County. Mr. Thielen retired after 30 years of teaching in the public schools where he served as theory, electronic music instructor and orchestra director at the Harrison School for the Arts in Lakeland, Florida.

Mr. Thielen’s orchestras have performed successfully at state, regional, and national level festivals and conferences. From 2006-2015, Mark was the orchestra director at All-Saints’ Academy in Winter Haven where he taught string students in grades 6-12. In May of 2015, Mr. Thielen retired from his position at All Saints. He maintains a private studio as well as works with Central Florida schools as a guest clinician/conductor.

Maestro Thielen performs professionally with the Hollingsworth Trio and the Unstrung Quartet. He is a past president of the Florida Orchestra Association. For 14 years, he was conductor of the Honors Orchestra program at the University of Central Florida. Maestro Thielen has been associated with the Imperial Symphony Orchestra for more than 40 seasons. He served as concertmaster and associate conductor for 24 of those years before becoming music director and conductor in 2000.

Ashely Miller



Ashley’s role with the Lakeland Symphony Orchestra as Executive Director provides her with an opportunity to put her fundraising, relationship building, and communications skills to work. Inspired by her love of music and the community where she was born and raised, Ashley’s greatest desire is to ensure that professional symphonic music is accessible to everyone.

Before joining the LSO, Ashley honed her marketing and advertising skills at MADE Brands as an Account Executive. Prior to that, she spent her career sharing the mission and vision of one of Lakeland’s beloved nonprofits – Volunteers in Service to the Elderly (VISTE).

Ashley is a Lakeland native and earned her B.A. in Advertising from Florida Southern College. Many describe her as a bundle of energy always ready to contribute her love for authentic storytelling, and collaborative spirit to the task at hand.

Ashley is a graduate of Leadership Lakeland Class XXXVI, and the recipient of the United Way of Central Florida’s 2017’s Outstanding Partner Agency Employee Coordinator. She lives in Lakeland with her husband, Josh and her son, Jack.

Christine Collister



Christine Collister is the Patron Engagement & Operations Manager of the Imperial Symphony Orchestra. Originally from Massachusetts, Christine earned her BFA in violin at Ithaca College in New York. Christine honed both her musical and administrative skills in New York and Connecticut before moving to central Florida in 1999. In addition to classical music, Christine also enjoys performing jazz, folk, Celtic, bluegrass, and country and performs regularly throughout central Florida as a freelance musician. You can see Christine perform with Jon Corneal and his Compadres every Friday afternoon at Noon and 1:30PM at Hillcrest Coffee (corner of Hillcrest/Missouri in Lakeland), and in area venues with the Munn Park Saints and 32 Trees.

Besides music, Christine enjoys crochet, reading, travel, cooking, and trying new and exotic cuisine. Christine met her husband, Davis Collister, in the LSO (he in the bass section, she in the violins) and they live in Kathleen, FL with their son, Daniel.

join us in preserving the art