The Team

Our team includes several vocal instructors with varying specialties, as well as an artist development coach and a regular showcase band.

We work more like a team rather than as a loose collection of teachers who happen to share a roof (well, three rooves).  Often, students work with one instructor for voice and with Justin for strategy or stage work.  Or we share tips and techniques, or bring another teacher to sit in, when we find a student staying plateaued for too long.  We’ve even been known to recommend a different teacher at Performance High if that’s the best thing for the singer.  We’re a stronger team when we work together.

Click on the photos to learn more about each teacher, or contact us and we can recommend the right teacher for you.  You can also read what our clients have said on our testimonial page.

Vocal Coaches

We ensure quality across all teachers, regardless of genre specialties, by participating in regular knowledge-sharing and cross-education within, and outside of, Performance High.  All teachers have passed a background check to ensure student safety.  All teachers are also active in the Denver music scene, whether it is performing with their own bands, in studio work, or running other music-related businesses.  

Genres and Specialties

Although each teacher has a specialty, don’t worry if you don’t see your genre or sub-genre listed here.  Every teacher is quite versatile.  The underpinnings of voice are the same across all popular genres.  Genre techniques diverge at a fairly high level, above the foundation of healthy singing.  (For example, you need to learn breath support and how to mix whether you plan to drop some complicated riffs, shatter glass with a high belt, or scream.)

Adrienne Osborn

Founder and Owner
Pop, Rock, Soul, R&B
Denver: W/Thu 12-6:30
Broomfield: Sun 2-6 biweekly
Lone Tree: Tu 2-7 biweekly
Specializes in touring and signed artists and adult vocalists.
Learn more

Cody Qualls

Pop, Rock, A Cappella, Country, Musical Theatre
Lafayette: Schedule varies.
Specializes in touring and signed artist vocal development.
Learn more

Kristin Henry

Pop, R&B, Country, Musical Theatre, Classical
Broomfield: Tu/Thu/F 11-6
Great with pre-teen, teen and adult singers of all levels and all genres except hard rock.
Learn more

Tyler Hall

Rock, Metal, Blues, Pop
Denver: M/Tu/Thu/F 11-7, Sun noon-5pm, occasionally Sat
Great with rock singers, modern pop singers, and anyone who appreciates a detailed, technical approach.
Learn more

Emma Wallingford

Pop, R&B, Soul
Denver: T/W 2-9, Th 1-9, F 2-4, Sa 9-11
Great with pre-teen, teen, and twentyish pop, R&B & soul singers. Learn more

Connie Hong

Jazz, Pop, R&B, Musical Theatre
Denver: Mon 1:30-5, Fri 11-2
Great with beginning through advanced vocalists teens and up.
Learn more

Rachel Irvin

Jazz, Rock, Musical Theatre
Denver: M/W 11-9
Great with young jazz, rock (including hard rock), and musical theatre singers as well as injured vocalists. Learn more

Chris Mercer

Rock, Pop
Aurora: Mon, Tue, Sat
Great with intermediate through advanced teens and adults.
Learn more

Joe Mondragon

Pop, Rock, R&B, Musical Theatre
Broomfield: Mon 3:30-8
Great with beginning through advanced vocalists, kids and up.
Learn more

MaryLynn Gillaspie

Jazz Stylings Specialist
Lafayette: Tue, Fri, Sat, Sun
Great for experienced jazz singers (knowledge of jazz standards required).
Learn more
RaeLynn Martinez - Vocal Instructor - Pop, Rock, R

RaeLynn Martinez

Performance High Admin and Instructor
Pop, Rock, R&B, Soul
Denver: Mon 2-8
Broomfield: W/Thu 3:30-8
Lone Tree: Tu 2-7 biweekly
Great with beginning through advanced vocalists of all ages.

Wellington Bullings

Jazz, Pop, R&B
Broomfield: Wed 11-7, Fri 3:30-8
Great with beginning through intermediate vocalists, kids through adults.
Learn more

Corinne Denny

Opera, Musical Theater
Lone Tree: Wed 12-6
Broomfield: Tue 5-8
Great with beginning through advanced vocalists pursuing classical vocal performing arts.
Learn more

Vocal Coach Availability

Availability does change on occasion – please ask us if you don’t see the teacher you’d like to work with on the days you’re available.

  Mondays Tuesdays Wednesdays Thursdays Fridays Saturdays Sundays Variable
Denver Adrienne, Tyler, Emma, Connie, Rachel, RaeLynn Emma, RaeLynn Adrienne, Emma, Tyler, Rachel Tyler, RaeLynn Connie, Tyler, RaeLynn Emma, Tyler Tyler  
Broomfield Joe Kristin, MaryLynn Wellington Kristin, RaeLynn Kristin, MaryLynn, Wellington MaryLynn Adrienne, Tyler Cody
Lone Tree Adrienne, RaeLynn Corinne  
Online Emma, Wellington, Connie, Rachel, RaeLynn Emma, Wellington, RaeLynn Emma, Wellington, Rachel Emma, Wellington, Connie, RaeLynn Emma, Wellington, Connie, RaeLynn Cody


Vocal Coach Specialties

  Pop, Soul, R&B, Gospel, Country, Folk Rock, Blues Hard Rock, Metal, Screaming Musical Theatre Jazz Classical A Cappella Kids 10 and Younger Mature Adults Latin (habla Español)
Denver All teachers Tyler, Adrienne, Rachel Tyler Rachel Connie, Rachel Connie Emma Emma, RaeLynn Adrienne, Connie RaeLynn
Broomfield All teachers Adrienne Tyler Kristin MaryLynn Kristin Cody Joe, Wellington Adrienne, Cody, Kristin RaeLynn
Lone Tree Adrienne, RaeLynn Adrienne, RaeLynn Corinne Corinne RaeLynn, Corinne Adrienne, RaeLynn, Corinne RaeLynn
Online Cody, Kristin, Emma,Rachel, Connie, RaeLynn Cody Cody, Rachel, Connie, Kristin, RaeLynn Kristin Cody, Emma Emma, Wellington, RaeLynn Cody, Kristin RaeLynn

Artist Development Coach

Justin provides our artist development services, teaches our classes, teaches private guitar lessons, and is the musical director for showcases. 

Justin Leighton Long

Artist Development Coach and Musical Director
Denver: M-Sa 11-7
Other studios by appointment
Great with emerging and established artists from teens up. Learn more

Showcase Band

Our showcase musicians love helping singers find confidence and have fun both during rehearsals and showcases.  Many of them are educators as well, and work with students of all ages on a regular basis.  We are usually able to bring the same band together for every showcase, helping singers feel more at home the more showcases they perform.  When needed, we dip into a long list of top-tier pro Denver musicians.

Justin Leighton Long

Justin was a founding member, lead guitarist and songwriter for the band No Address. No Address released Time Doesn’t Notice on Atlantic Records and toured North America extensively, with their debut single “Sadie (When I’m Gone)” standing at #11 on the Billboard Radio charts for 22 weeks. As a recording engineer and producer Justin has worked for bands signed to labels including Atlantic, Elektra, Immortal, Wind Up, Curb, Blind Bat, S-Curve, Victory, Blues Legacy and J Records.
Ryan Elwood - Drummer

Ryan Elwood

Ryan Elwood is a drummer, producer, and composer based in Denver, Colorado. During his career he has played at venues such as Red Rocks Amphitheater and the Gothic Theater as well as at festivals including the Underground Music Showcase and Bohemian Nights at NewWestFest. Ryan has been a working musician since age fifteen, playing styles as varied as pop, rock, country, folk, R&B, blues, jazz, and theater. He spent several years refining his improvisational skills with jazz artists George Keith and Eric Dorn before joining indie-rock group FaceMan. Since then, Ryan has become an in-demand sideman, performing and recording with artists and bands including Buckstein, Adrienne O, Doug Haywood, Natalie Walker, Craig Haller, and Automatic Iris.
Mario Pagliarulo - Bass

Mario Pagliarulo

Dedicated, passionate and innovative are three words that perfectly describe bass teacher and professional bassist Mario Pagliarulo. Born and raised in Naples, Italy, Mario has spent the last 20 years building a name for himself, with a career that spans the Atlantic and touches on almost every musical genre and style. Touring and recording with such well-known artists as Serj Tankian (System of a Down) and Trevor Hall, has given Mario a diverse musical background, unique musical sensibility, compelling stage presence and impeccable professionalism. As an instructor, Mario draws on his years of touring, studio, and teaching experience to help his students develop both their technical skills and their own unique musical personalities.
Bryan Stacks - Keyboard

Bryan Stacks

Versatile and very active in the music scene, Bryan focuses on instruments with 88 keys and 6 or 4 strings. He plays keys, bass, or guitar – and sings backup – in various bands including Echoes in Reverie, Hold Me Hostage, My Own Summer, Adrienne O, and the Tom Petty Project.
Jacob Larson - backup vocals

Jacob Larson

Backup Vocals
Jacob Larson is a funk/R&B vocalist trained for the last nine years at Performance High, currently pursuing a degree in Music Performance and Music Business at CU-Denver. He performs with the Diamond Empire wedding band, Adrienne O, Performance High, and his own millennial funk party band, the Jacob Larson Band. He regularly shares the stage with Colorado musical luminaries such as Hazel Miller, Erica Brown, and Chris Daniels. $40-$100