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Sarah Robertson, flute,

Sarah Robertson holds a Bachelor of Music in Flute Performance from Indiana University of South Bend and a Master of Music in Music Education from Wright State University. She has over twenty years of professional experience as a performer, conductor, freelance musician, solo and ensemble adjudicator, and music educator. Sarah has worked as a pre-k-6th grade music teacher, 5-12 band director, MS choir director, and served on the adjunct faculty at Edison Community College.

Sarah loves performing, and in 2019, she founded her flute trio, Syrodesy, a sought-after group in the Dayton and surrounding areas due to their unique programming and style. In 2020, Syrodesy traveled to Virginia to perform at the Mid-Atlantic Flute Convention. Sarah loves collaborating with fellow musicians and creating performances that captivate audiences. She also plays in the Springboro Wind Symphony, subs in the Kettering Praise Orchestra, and plays frequently in local pit orchestras. 

Teaching brings incredible joy to Sarah. Whether she’s teaching a private lesson, flute choir, group class, masterclass, studio class, or workshop, her goal is to let her students take ownership of their music and musicality! She is well-versed in the most current flute curriculum and is known for creating a lesson environment centered on each student’s learning style, both in group classes and private lessons. Her students often advance to semi-final and final rounds in a variety of competitions, including Sound Espressivo, PANdemonium4, COFA, the Utah Flute Association Sonata Competition, and Floot Fire. Her highly-disciplined and motivated students often perform in local and state honor bands like the Wright State Honor band, District XIII Honor Band, and the prestigious Ohio All-State Honor Band. 


Sarah has been featured on the Flute 360 and Full Voice podcasts, and in 2021, she was interviewed by Sound Espressivo. She is sought after as a clinician, specializing in young learners and music and movement in private lessons. Sarah is a regular contributor to Little Flute Magazine, a quarterly magazine that is translated into numerous languages and distributed throughout the world. Her professional affiliations and certifications include the National Flute Association, Kinderflute, The Flute Society of Washington, Flute Play, and the Dayton Music Club. She also serves as secretary on the board of the Springboro Wind Symphony. When not teaching or performing, you can find her playing with her two boys, running, hiking the trails of Ohio, and biking with her family. Contact Sarah at 

Christin Coffee Rondeau,
voice, co-founder

Soprano Christin Coffee Rondeau is obsessed with voices. Hers. Yours. Everyone’s. What makes them soar, shine, and sparkle. She holds a Bachelor of Music (Mercer University) and a Master of Music (Miami University) in vocal performance, along with numerous trainings in Orff Schulwerk and Estill. She’s performed in several seasons with the Dayton Opera Chorus, has been a featured soloist with the Cincinnati Pops Orchestra and the Springboro Wind Symphony, and has performed considerable oratorio work (including the soprano solos in Schubert’s G Minor Mass, Haydn’s Missa Sancta Gabrielis, and Vivaldi’s Gloria). Though her formal training is strictly classical, don't let the degrees fool you. A warm and versatile performer, Christin's repertoire spans from art song to musical theatre to opera to jazz standards.  There’s not much she won’t sing, but she’s happiest when collaborating on challenging musical projects with good friends.

In addition to her work as a performer, Christin is a veteran voice teacher, with nearly 20 years of teaching experience across 5 different states. (See? Ob.Sessed with voices--no matter where she is, she just ends up teaching people to sing!) A pioneer in the field of collaborative voice teaching, she co-presented, "With a Little Help From My Friends: Collaborative Teaching in the Voice Studio" at the 2020 National Association of Teachers of Singing Conference with Michelle Markwart Deveaux.

Her writing on vocal pedagogy has been featured in the 4th Edition of Dr. Robert Sataloff's "Professional Voice: The Science and Art of Clinical Care," in several NATS Inter Nos issues, and at The Full Voice. She has also been a guest on The Full Voice, The Voice Culture, and Vocal Fri podcasts. She serves as Community Manager and Copy Writing Coach for The SpeakEasy Cooperative and has presented at conferences for the National Association of Teachers of Singing and The SpeakEasy Cooperative. She is a sought-after clinician and coach and loves team-teaching and mentoring young singing teachers. 

In addition to singing, teaching singing, and teaching singing teachers, Christin is an aspiring aerialist, training regularly in aerial silks and Lyra with her daughters. Contact her at


Coleman Clark, voice and piano

Equally adept on the stage and in the studio, pianist and baritone Coleman Clark has spent his life wooing and wowing audiences through art song, musical theatre, classic rock, and more. From Bach to Billy Joel, he lives for performing and sharing joy through music...and for equipping his students to do the same. He maintains a packed performing schedule of diverse styles and genres, and his favorite musical theatre credits include the roles of Perchik, Gaston, and Valjean.

In addition to his work as a vocalist, Coleman is a sought-after pianist, performing all over the midwest as both a soloist and collaborative pianist for singers of all genres. He has developed a "Master the Mic" presentation and workshop on microphone techniques for young singers, which he has presented to singers across the continental US. Coleman is a founding member, keyboardist, and lead vocalist for the band The Blue Leaf’s and wrote many of the orignal songs on their three albums, "I Just Met Her," "Shades of the Blue Leaf's," and "Rite of Passage."

Coleman holds a Bachelor of Music Education from Wright State University. He is music director at Fairmont Presbyterian Church and serves as voice and piano faculty at Sand Dollar Music in Dayton, Ohio. As a pianist, he specializes in jazz, rock, and pop and loves teaching young pianists to not only play the notes on the page, but also to read chord charts and lead sheets so they can be versatile, confident performers, no matter the genre.

When he's not teaching or performing, you can find Coleman spending time with friends and family, working out, kayaking, hiking, or mayyybe playing a little Rocket League or Call of Duty. 


Bradley McCarroll, voice and beginning piano

Born and raised in the Dayton area, Bradley Clarence McCarroll graduated from Wright State University in 2019 with a Bachelor's Degree in Vocal Performance. During his time there, he performed in Wright State University's Men's Chorale, University Chorus, Collegiate Chorale, and Jazz Band as well as the Dayton Philharmonic Orchestra Chorus. He performed a lead role in WSU's production of The Mikado as Nanki-Poo in 2018 and was a winner of The Concerto Aria Night in 2019 with Kurt Weill's Lonely House. In addition to voice, Bradley studied piano and trumpet during his time at WSU.

Bradley is currently a member of Dayton's Chamber Choir "Musica" and the Ohio Valley British Brass Band. He also plans to begin writing, recording, and editing his own music.


In addition to his collegiate experience in the classical genre, Bradley enjoys performing, teaching, and listening to many genres: musical theatre, pop, jazz, classical, folk, alternative, and everything in between!  He enjoys helping his students meet their goals and grow as musicians regardless of what styles or genres interest them most.


Bradley is a proud dad of two cats (Hera and Chibi) and has recently started collecting house plants. Some of his favorite artists right now are Jacob Collier, Tame Impala, Michael Mayo, Joji and ENHYPEN. When he's not involved with work or music, he enjoys spending time with friends, going to the gym, enjoying nature, practicing Spanish, and cooking all sorts of food!


Mike Cage, voice

Bass Mike Cage holds a Bachelor of Music in Vocal Performance from Central State University and joined the Sand Dollar faculty in 2022. He has performed around the country with the CSU chorus and male quartet, and he has also performed in Austria, Germany, and three provinces in China.

He regularly sings with the Dayton Opera Chorus and a variety of other local organizations, including First Baptist Church of Dayton.

Mike has always loved the art of teaching voice and loves helping singers of all ages and skill levels define and achieve their singing goals. In addition to his work as a singer and voice teacher, Mike serves as a C-17 Crew Chief in the US Air Force Reserve. And if he’s not under a jet, on a stage, or in the teaching studio, you can probably find him in the gym.


Anthony Frazier, trumpet, French horn, and mellophone

Anthony comes from a background of adversity. Born missing his right hand, he quickly learned the value behind every experience in life. Because of this, he aspires to Sand Dollar students' experiences int eh studio meaningful and valuable. 

Originally from Kennesaw, Georgia, Anthony currently lives in Dayton, OH. He was a member of Rhythm X Winds group playing Mellophone from 2019-2020 and Rhythm X percussion Visual Ensemble in 2022. He was also with The Cadets playing Mellophone in 2020.

In addition to his work at Sand Dollar, Anthony is also on the Rhythm X Administration Team and teaches at Centerville High School  and Kennesaw Mountain High School. When he's not teaching or playing,
you can find him enjoying some spontaneous adventures! :) 

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