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Giammanco Voice

Leslie Giammanco is an internationally recognized voice teacher and performance coach, having taught some of the most talented artists on the musical stage today. Her teaching encompasses the core fundamentals of great singing,

in all genres, including Opera, Classically-Based or Contemporary Belt Techniques, Broadway, Off-Broadway, Musical Theatre, Pop, Rock, Blues, Jazz, and Cabaret.  An Opera and Broadway alum, Ms. Giammanco prepares students for successful Opera, Broadway, off-Broadway, national, and international careers. 

Private Lessons

In-Person or Online Studio
Wells, ME

Lesson Offerings Include:
Vocal Technique, Repertoire Coaching, Building your Audition Book, Prep for College Musical Theatre Auditions, Vocal Competitions, and Career Counseling.   
Musical Styles Include:
Classical (opera, oratorio, art song, concert rep) Musical Theatre (legit, belt, contemporary, rock) Jazz, Cabaret, Rock, Pop, R&B, Folk, World Music, and Speech Training
College Musical Theatre Audition Prep
Prepare the perfect audition songs appropriate for your voice and type. Finding the right songs for auditions can be the key to being noticed.

Master Classes, Concerts & Recitals
Sharpen and improve your LIVE performance skills in a supportive environment. You will have the opportunity to be showcased in concerts and recitals, a necessity for every student and vocal athlete.

Update Your Audition Book
Do your audition songs truly represent you? Need a different repertoire? I can help you revise and update your audition material. It’s important to keep your Audition Book current.

Local, National, International
All Ages and Experience Levels
Online and In-Person Lessons
My online and in-person studio is open to vocalists of all ages and levels of experience, around the world. All students are met in a warm, inclusive, training environment. We focus on the balance of breath management, phonation, registration, resonation, and articulation. My teaching philosophy, vocal techniques and practices give students the tools to get noticed, strengthening their voices for the demands of all genres, including Broadway and Off-Broadway, as well as all other musical stages.
Please note: Online lessons can offer more flexibility and save time and travel. These lessons are just as productive as in-person lessons and students improve at the same rate. 

The Vocal Athlete
​​The vocal athlete never stops learning, growing and strengthening. If you’re looking for a teacher who can take you to the next level and give you that extra edge, we just might be a perfect match. Your voice and self-confidence can become stronger and will flourish in a joyous, non-judgmental environment.

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Sandra Okuboyejo

Singer, Actor, Composer
Hamilton (Broadway)
Nollywood Dreams (Off-Broadway)
Natasha, Pierre and The Great Comet of 1812

Leslie Giammanco is a transformative voice teacher. Her ability to enhance the authenticity of your sound through the marriage of vocal technique and storytelling is what
sets her apart from many. I can confidently say I'm a more versatile and secure performer, and human, because of my experience with Leslie.

Daniel Yearwood

Sweeney Todd (Broadway)
Hamilton (Broadway) 
Once On This Island (Broadway) 
In the Heights (Regional)
Newsies (Regional)

As an over-thinker, I knew I needed to manipulate myself into achieving a certain sound. I came to her with no background in classical training and therefore a relatively bleak foundation for singing. Leslie helped me unlock potential I never thought I’d be able to access. By learning to trust her techniques and believe that my instrument was enough, she gave me the tools to veer away from affectation or overcompensation. Whether you’re at the start of your singing journey or a flourishing vocal prodigy, Leslie is the quintessential back-to-basics teacher that will help you thrive in every capacity. @daniel.j.yearwood

Meagan Michelson

The Big Bang Theory (Off-Broadway)
Annie (Regional)
Mamma Mia! (Regional)  
42nd Street (Regional)
A Funny Thing Happened...Forum (Regional)  

Leslie's broad experience in both the opera and theatre worlds makes her an ideal instructor for singers across the spectrum; from classical vocalists to musical theatre belters. She offers a comprehensive and practical approach to vocal study. In addition

to providing me with an extensive repertoire, Leslie helped me explore my physicality to maximize easy vocal production. With her vast knowledge, complimented by her charming warmth and humor, Leslie gave me the tools necessary to pursue a life

in performance. @meaganlewismichelson

Samantha Cho Grossman

Actor Singer Dancer
A Chorus Line (Japan National Tour)

Leslie is an amazing teacher, but my favorite thing about her is that she is an incredible person as well. I have found that there are very few teachers as warm and loving as Leslie. She works hard to help you better yourself as both a singer and a person. Leslie’s encouragement and vocal teaching has helped me grow leaps and bounds. There aren’t enough words in the English language to say how much I am thankful for her. She’s an incredible woman and teacher.

Jonathan Gomolka

Actor Singer Dancer Director
Guys and Dolls (Regional)
The Music Man (Regional)
Really Rosie (Regional)

Leslie Giammanco completely changed my voice. Point blank. With her extensive knowledge and teaching experience, Leslie took my small high school baritone voice and taught me to SING.  She expanded my range and taught me to not be afraid of the power of my voice. Leslie is phenomenal in every way. @jonathanwgomolka

Micailah Lockhart

Hamilton National Tour
Mandela (Broadway)
​"Meecah" R&B Solo Artist

Leslie is amazing!  I came to her not knowing a lick about musical theatre or Soprano.  After my 4th year at Pace, not only was I excited about the range and experience that I explored with her, but I  also became more dedicated to my vocal health than ever before.  She has even dedicated time out of her day to calm me when I'm nervous.  @meecah


An internationally recognized voice teacher, Leslie Giammanco specializes in contemporary commercial musical theatre belt and classical techniques. Her students perform on Broadway, Off-Broadway, national and international tours, opera, and symphonic stages. She frequently gives master-classes and vocal clinics throughout the US and China, focussing on Contemporary Musical Theater Audition Techniques, Audition Repertoire, and Contemporary Broadway Mix Belt Techniques.  

Leslie taught on the Voice Faculty of Pace Performing Arts in New York City for fourteen years before moving to Maine, where she now maintains her voice studio. Her China teaching affiliates include LBM International Arts Education, MRL International Music Festival and Dramax Group of Beijing. Past university faculties Leslie has served include Pace University Performing Arts, NYU, Tisch School of the Arts, CAP21, Hartt School of Music Theatre program, and Adelphi University Voice  Opera.  Ms. Giammanco is a member (and past board member) of The New York Singing Teachers Association, The National Association of Teachers of Singing and The Voice Foundation. She belongs to the performing unions Actors Equity Association, and American Guild of Musical Artists. 

 “Compelling strength and vocal dexterity” have made Leslie Giammanco a versatile performer of the Opera, Broadway, Symphonic, Concert, Cabaret, and Cruise Ship Stages. She performed seven roles on the Broadway and National Tours of Andrew Lloyd Webber’s The Phantom of the Opera. On the symphonic stage, she made her Carnegie Hall debut with the Manhattan Philharmonic, performing in the New York premiere of Dello Joio’s Nativity: A Canticle for the Child, and Vivaldi’s Beatus Vir.

She has been a principal soloist with Minnesota Orchestra, Rochester Symphony, Duluth-Superior Symphony, New Jersey State Opera, Minnesota Opera, Amato Opera, Midwest Opera Theatre, Opera St. Paul, St. Paul Chamber Ensemble performing Gounod's Messe Solenelle, Bach’s B Minor Mass, and Cantata #51 “Jauchzett Gott,” Brahms’ Requiem, Mozart's Mass in C Minor, Handel’s Messiah, and Haydn’s Mass in C Minor. Additionally, she has been featured in many pops concerts with Minnesota Orchestra singing Lerner and Loewe, Rodgers and Hammerstein, Cole Porter, and Jerome Kern. Ms. Giammanco has scored many successful cabarets and solo recitals at Steinway Hall with pianist Stephen Sulich performing Wagner, Dvorak, Strauss, Puccini, Brahms, Poulenc. Successful cabaret shows with famed jazz pianist David Lahm include Back in Business, Let My Song Fill Your Heart, Heart’s Desire, Stagestruck Me, Come To Our Party, I Love to Sing-A at Judy’s Chelsea, The Duplex, Danny’s Skylight Room, Debra and Mary’s “Night on the Town”, and Kennebunkport’s The Colony Hotel, The Nonantum and Art from the Heart Productions. No stranger to the cruise ship industry, Leslie has sung her way through the international seas with Hapag Lloyd’s MS Europa and Europa 2 cruise ships, entertaining guests with Broadway favorites. Ms. Giammanco is also the founder and artistic director of DivaGrams Entertainment, a company that provides dramatic vocal and instrumental performances for extraordinary corporate and social events.

Ms. Giammanco received her B.M. degree in Vocal Performance from University of Southern California under the tutelage of Margaret Schaper and Madame Gwendolyn Koldofsky and her M.M. degree in Vocal Performance from Northwestern University under the tutelage of Patricia O’Neil  with additional studies at Illinois Wesleyan University. She also trained with Minnesota Opera Company’s Young Artists Program under famed director Wesley Balk and Jacqueline Jones. Her present mentor is Doris Jung Popper. 

She has been a recipient of many prestigious opera awards including The Metropolitan Opera Regional Finalist, American Opera Auditions, Illinois Opera Guild Auditions of the Air, and the San Francisco Opera Auditions. No stranger to television, Leslie gave a voice lesson on the WE Network’s “My Fair Wedding” and showed off her collectables in “Treasures in Your Home.”

Famed director Hal Prince endorses Leslie’s CD Let My Song Fill Your Heart (Original Cast Records). “Leslie Giammanco’s CD celebrates a golden period in American Musical Theatre. Her choices are just that: Choice. Some of the selections are standards, some are little known, but wonderful. Larry Grossman’s and Hal Hackady’s Mama a Rainbow, Jerome Kern and Ira Gershwin’s Long Ago (and Far Away), and Jerry Herman’s It Only Takes a Moment, are just three favorites. Ms. Giammanco is currently a member of the New York Production of  “The Phantom of the Opera” and represents it eloquently.”

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