Meet the Teachers

Matt Bernemann

Matt Bernemann has been an active performer, teacher, and studio musician in eastern Iowa for 25 years. He has played and/or recorded with: Saul Lubaroff, Nic Arp, Shade of Blue, Martin Carpenter, The Bernemann Brothers, Mirage, David Zollo, Jordan Sellergren, Bo Ramsey, Brian Johannesen, Ben Schmidt, Pieta Brown, Crystal City, The Heartache Connoisseurs, and The Tanya English Band.

In his spare time, Matt enjoys watching films, cooking, reading, and studying history. When not performing or teaching, he spends his time with wife Jody, and sons Gabriel and Noah.

Andrew Gentzsch

Dr. Andrew Gentzsch, a native of Iowa City, Iowa, is the violin instructor at Cornell College in Mt. Vernon, Iowa and Grinnell College in Grinnell, Iowa. Previously, Dr. Gentzsch earned a Bachelor of Music in violin performance at the University of Wisconsin-Madison, followed by a Masters of Music at
the University of Delaware. Dr. Gentzsch finished his terminal degree, a Doctorate of Musical Arts in Violin Performance and Pedagogy at the University of Iowa.

Dr. Gentzsch’s primary teachers have included: Allen Ohmes, Doris Preucil, David Perry, Xiang Gao, and Dr. Scott Conklin. As an educator, Dr. Gentzsch is known for compassionate and energetic teaching. He frequently runs orchestra sectionals at Cornell College, Grinnell College, and Linn-Mar High School. Dr. Gentzsch formerly taught masterclasses, sectionals, All-State coachings, and lessons at the University of Delaware,
the University of Iowa, the University of Wisconsin-Madison, and Iowa City High School. Graduated students have gone on to win scholarships and orchestra positions, most recently a student winning a position in the Denver Philharmonic.


Dr. Gentzsch leads numerous orchestras as concertmaster, leading the University of Delaware Chamber
Orchestra, the University of Iowa Symphony Orchestra, and the Grinnell Singers Orchestra. Recently, he led the Palisades Ensemble for their final performance of the year. Dr. Gentzsch also has a passion for
new music, premiering numerous new pieces a year and leading the University of Iowa Center for New music from 2013-2017. His most current published scholarship focuses on the development of new music violin techniques. Dr. Gentzsch also performs often as a solo performer and chamber musician, helping found the Concerts in the Shed, a chamber festival in Sherry, Wisconsin.

Holly Cullen

Meet our new Piano, Clarinet and Saxophone instructor, Holly.

Holly Cullen has 11 years of experience teaching pre K–6th grade instrumental and vocal music in schools throughout Iowa. She is Kodály and Orff certified, and teaches private lessons to beginning and advanced clarinet, saxophone and piano students.

Ms. Cullen gladly embraces leadership roles, as demonstrated by having launched a 4th-6th grade band program from scratch, designing and teaching several of her own week-long themed summer music camps, and being a member of the leadership board for Girls Rock! Iowa City.

Her other recent positions include working at St. Matthew’s school, being the elementary band director and music teacher in the Burlington Community, Sacred Heart, Maquoketa, Keota, and Summit school systems. In addition, Holly has performance experience with various ensembles including the Karl King Band, Southeast Iowa Band, Southeast Iowa Symphony, and Central Iowa Symphony.

Holly graduated from Iowa State University in 2012 with a Bachelor of Music in Music Education and lives in North Liberty with her husband, Kieran. In her spare time, she enjoys cooking, playing with her cats, and cheering on the Cyclones with friends and family. 

Les Ohlhauser

For the last 30 years, Les Ohlhauser has done almost nothing besides play, think, and live guitar. During that time, he has performed thousands of gigs, written tons of songs, recorded several albums, taught countless students, and has loved every minute of it.
Whether you’re looking to learn rhythm, lead, theory, technique, songwriting, singing and playing at the same time, or any combination of the above, Les has the real-world experience to get you where you want to be!

Kari Sicard

Meet our Owner and Piano Instructor!

Kari Sicard has been teaching piano and music lessons for nearly thirty years. Kari started teaching piano lessons under the advisement of Jo Arthur and the Jo Arthur School of Music in Waverly, Iowa. She also taught for the Tower School of Music based out of Wartburg College. After graduating from Wartburg College with her Bachelors Degree in Music Education and Piano Performance, Kari taught K-5 General Music in Central City Community School District from 1996-1998. While there, Kari started laying the groundwork to have her own music studio. Beginning in 1998, Kari taught as one of the primary piano instructors at West Music in Marion, Iowa. After spending 23 years at West Music, Kari has now established Just Make Music providing in person or virtual one-on-one lessons for students in her new location.

Caleb J. Estrada-Valentín

A freelancing flutist in the greater Iowa City area, Caleb J. Estrada-Valentín (he/him) holds degrees in music education (BME) from Baylor University, Waco, TX, and flute performance (MA) from the University of Iowa, Iowa City, IA. As a performer, he regularly substitutes with the Quincy Symphony Orchestra, Quincy, IL, as Flute 3/Piccolo. Recently, his talents have been recognized in the Flute Society of Kentucky’s 2024 Young Artist competition (3rd prize), the Florida Flute Association’s 2024 Nancy Clew Eller Artist competition (finalist), and the National Flute Association’s 2023 Masterclass Performers Competition.

In his spare time, Caleb enjoys writing and recording flute choir arrangements of video game soundtracks. He also enjoys spending quality time with his two cats, an 8-year-old tortoiseshell named Urbosa and a 2-year-old siamese mix name Ahsoka.

His teachers include Nicole Esposito, Dr. Charlotte Daniel, and Cecilia Hamilton

Shelby Brewer

Shelby Brewer, Mezzo-soprano, is a versatile musician with a passion for helping others discover their own voices. Her holistic approach guides her students through discovering the importances of vocal health and longevity, music theory, performance techniques, and the wholesome enjoyment of music. Shelby has been involved in numerous musical endeavors throughout her career, such as Vocal Jazz Ensemble at the University of Lincoln-Nebraska, musical theatre at Starlighters II theatre in Anamosa, Iowa, Cantorei at the University of Northern Iowa, as well as contemporary performances in rock and pop within the community.

Shelby began her studies at the University of Nebraska-Lincoln and received her Bachelor of Arts in Music from the University of Northern Iowa. She has studied with numerous well-known instructors, such as William Shomos, Cindy Shadrick, David Von Kampen, and Jean McDonald. Since receiving her degree, Shelby has enjoyed sharing her love and knowledge of music with many students within the Cedar Rapids area.

Shelby offers private voice lessons, vocal coaching, and performance coaching in-person or online.





For lesson inquiries, please scroll down to the “Register Now” portion of the home tab on justmakemusic.org.