Olga Schlosser: Voice

At age 6 Olga Schlosser was already singing, dancing, and performing on a stage. This was always her passion from childhood. She studied full time for 7 years at a professional music school, and 4 years at a college of music and theater arts in Europe. She has worked as a Soloist with Moscow's National Orchestra and has been involved in Music ministry at many various churches. Olga is teaching and helping others to reach their potential.Her students progress quickly with confidence, style, strength and a voice that is uniquely all their own.

Bethany Gonella: Flute

Bethany Gonella plays flute and piccolo in the La Crosse Symphony and the Winona Symphony, performs as a substitute musician in several orchestras, including the Minnesota Orchestra and the Minnesota Opera Orchestra, and works as a freelance performer. She holds degrees in flute performance from Northwestern University and the University of Southern California and is currently pursuing her doctorate at the University of Minnesota. Bethany teaches both privately in the Twin Cities and as adjunct professor of flute at Winona State University. She enjoys working with students of all levels and ages. Her teaching style is strongly influenced by the Suzuki philosophy, and she creates a positive, encouraging atmosphere for students to develop as musicians. You can read more at www.BethanyGonella.com.

Joe Buscher: Percussion

Joe teaches Drum set, snare drum, and mallets and welcomes all levels and all ages.   Joe has a Bachelor of Science Degree from Illinois State University, where he played snare drum in the marching band and all other percussion instruments in concert band, and was a certified graduate of Music Tech in 1995 focusing on drum set.  Joe has been teaching privately since 1996 and has played with many bands in a variety of musical styles.

Greg Lewis: Brass

Greg Lewis has been a full-time professional player, clinician, and private teacher since 1971.  Past affiliations include the Minnesota Orchestra, Chanhassen Dinner Teatres, Guthrie Theater, Children's Theare Company and The Cedar Avenue Big Band.  He has shared the stage with many of the biggest names in jazz and popular music, including Doc Severinsen, Tony Bennett and The Jimmy Dorsey Big Band.  Greg teaches all brass instruments and all musical styles to students at any level of development, tailoring lessons and materials to each student's individual needs.  To quote Greg: "Empowering students in their development is on of my greatest joys in life." 

Eric Dollerschell-Petry: Woodwinds

Eric has a Bachelor of Music Education: K-12 Instrumental Music and Classroom Music from Minnesota State University, Mankato.  He has taught 7 years of band in several districts in Minnesota.  He is currently the Principal Director for the Minnesota Freedom Band and Freedom Jazz! Big Band.  He has performed with Mankato Symphony Orchestra, St. Cloud Symphony Orchestra, Applause Theatre Company in the pit orchestra, and All God's Children Spirit! Praise Team.  His primary instrument is clarinet and doubles on bassoon, saxophones, trombone and trumpet.  He enjoys incorporating various styles of music into the lessons.  He is amember of Minnesota Band Directors Association (MBDA), Minnesota Music Educators Association (MMEA), Music Educators National Conference, and Minnesota Jazz Educators Association (MNJEA).

Steve Blons Guitar Instructor

Steve Blons: Guitar

Steve has been playing guitar for six decades and has been teaching at Groth Music since 1997. He is a freelance musician in the Twin Cities, known especially in jazz circles. He has appeared with numerous local and national artists and performed on many recordings. Steve welcomes beginners from 8 to 80, as well as more advanced students. All musical styles are welcome.

Karl Swartz: Guitar

Karl Swartz has been a musician since the age of six, has taught guitar for thirty four years and currently teaches at Groth Music(Bloomington, MN) and The Music Connection(Forest Lake, MN). His primary styles of guitar playing/teaching are in Rock, Blues, Acoustic along with beginning levels in Classical, Jazz and Country. His formal training in music includes private rock, blues, jazz and classical guitar instruction along with music theory, music composition and music history studies at Century College, The University of MN and at The Professional Guitar School of Minneapolis (presently The McNally-Smith Institute of Music). Professionally, he has played for 40 years with many different Twin Cities and nation acts, covering just about every style of music and has done national touring with the bands “Wild Eyes” and the show band “Dazzler”. His current bands are “The Minstrel's Bazaar” and “Free Fallin”(Tom Petty Tribute Show). www.karlswartz.net

Joe Vogel: Beginning Guitar, Bass, Composition and Music Theory

Joe has a Master of Arts degree in music composition and has been teaching for over 10 years. Joe is a member of the American Composers Forum and a member of ASCAP. Joe will teach students of all ages in electric and upright bass, as well as music theory and composition. He also teaches guitar to children.

Steve Clarke Woodwind Instructor

Steve Clarke: Woodwinds

Steve Clarke is an award winning musician and bandleader, accomplished on tenor, soprano, alto, baritone sax, flute, alto flute and bass flute. He is the winner of 11 Minnesota Music Awards (MMA) including 6 Minnesota Music Awards for “Horn Player of the Year.” He has appeared on over 75 recordings, commercials and jingles. He was formerly a member of Lamont Cranston and the Strawdogs; he is a founding member and principal soloist of Louis&Clarke (21st century jazz) and Other Country Ensemble (world music) His band The Working Stiffs is an award winning, highly energetic and rhythmic Jump / Swing / Jazz ensemble. Steve was inducted into the Mid-America Music Hall of Fame in October 2010. Steve is endorsed by Antigua Winds.

Nathaniel Riley: Piano

Nate has a Bachelor of Arts degree in piano performance and composition from Northwestern College, and has been working towards his Masters degree at the University of Minnesota.   Nate started teaching piano in the twin cities in 1997, and over the past 4 years has been teaching pre-K thru 12 music in Brazil.  Nate is also a well versed composer and vocalist and has won several awards from his compositions over the past 10 years.  Nate is very skilled and personable, and will work with all levels of ages and experience in piano study.

Liz O'Neal - Groth Music Violin Instructor

Liz O'Neal: Violin

Described as "a lovely force," Texas native Liz O’Neal started the violin at the early age of three. Among her many awards and scholarships, Ms. O’Neal has been a two-time Texas All-State Musician, the winner of Amarillo Symphony Guild's Young Performers Competition Strings Division, and the 2005 recipient of the Charles Emmons Award. She made her professional debut at the age of 16 and since then has performed as a soloist in recitals throughout the United States and Europe.

Liz holds a Bachelor of Arts-Music degree from the University of Minnesota-Twin Cities, teaches privately and freelances around the Twin Cities. She has taught a variety of students from beginner to adult, and uses traditional Galamian inspired teaching methods along with Suzuki, fiddle, and tango.


James Plattes: Violin, Fiddle, Harmonica, Mandolin

Jim is an accomplished jazz and classical violinist. He studied violin under Richard Adams, assistant concertmaster of the MN Orchestra. Jim is a multi-instrumentalist, and a winner of the West Bank School of Music “Jazz Composer Series” competition. He performs with and directs 2 ensembles: Etage, a jazz combo and the Larkspur String Quartet. Jim studied fiddle under Vassar Clements and Kevin Burke, and jazz performance with Eddie Berger. He has performed at the Guthrie Theatre, The Children’s Theatre Company, the Ordway Theatre and the Old Log Theatre, toured with Olivia Newton-John and was a member of RCA recording group The Daisy Dillman Band. Currently, Jim teaches violin, fiddle, harmonica, mandolin & ukulele. He is CEO of Violinagram.com, a romantic musical telegram service based in Minneapolis.

Jim has released four albums: “The Gypsy Fiddle Player/Amorica” (1980) "First Ray of Sunlight" (1997) "In the Moment" (2005) and “French Musettes & Love Songs” (2012). Winner, Intermedia Arts Sound Images showcase competition (Amazonian Dreamscapes) 1990. Minnesota Music Academy Award recipient 1988.  


Aaron Bjerke: Guitar, Piano, Theory/Composition, Ableton Live

Aaron Bjerke is a Rapid City, SD native that moved to Minneapolis in 2003 after attending the University of Denver in 2002 and has been teaching in the Twin Cities area for over 13 years. In 2005, he enrolled at McNally-Smith College of Music (St. Paul, MN) and received his Bachelor's of Music in Guitar Performance in 2007. He has since intricately studied Ableton Live - a popular computer program used for Music Production, Mixing, Sound Design, Synthesis, & Engineering and Mastering. He has been a professional musician since the age of 15 (17+ years), and currently produces and performs his original electronic music nationwide under the alias "Loom In Essence.”

Aaron began teaching private guitar lessons from home in 2003 and has since held positions at various music stores throughout the metro, including his own store - Rootnote Music (now closed). He teaches a vast array of guitar styles from Classical to Jazz/Prog, Folk to Heavy Metal, Afro-Latin to many other eclectic styles, as well as Theory & Composition on any instrument (through Master level), Music Production in Ableton Live, Intermediate Level Piano instruction (with advanced theory and composition), and welcomes students of all ages and skill levels. 


Laurie Knutson: Clarinet, Sax, Flute

Laurie Knutson is an established teacher, performer, vocalist, and board-certified Music Therapist with a Bachelor’s Degree in Music Therapy from the University of Minnesota, and a Bachelor’s Degree in Psychology from Sioux Falls College. She currently teaches saxophone, clarinet, and piano with students ranging in age from 5 to 94.

Laurie performs on baritone, alto, and soprano saxophones, clarinet, alto clarinet, flute, Native American flutes, and piano. She performs regularly with her band One Hit Wonders, the Other Country Ensemble, the vocal group After Five, and Steve Clarke and the Working Stiffs.


Laurie has been employed at the Minneapolis Veterans Affairs Medical Center as a Music Therapist since 2007. She is a member of both the American Music Therapy Association and the Music Therapy Association of Minnesota, and has worked with children and adults in a multitude of settings clinically as well as in the community.

Marissa Dodge: Piano and Voice

Marissa Dodge is an experienced vocal coach and piano instructor.  Her 35 year career as a professional musician and vocalist "LIVE" and in the studio, in a myriad of styles and venues, greatly benefits her students.  "Combining voice and piano accelerates the learning process.  No matter what age or level, my students excel using this method."  If you're interested solely in piano lessons, Marissa focuses on reading, ear training, chord theory, and performance technique.  An intuitive and sought after vocal coach, she specializes in pinpointing areas for improvement and helping her vocal students overcome individual voice issues with the use of exercises and correct technique, ear training, and singing in different styles, including improvisation.