Mary Vaillancourt

Mary V.

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100% Satisfaction Guarantee

100% Satisfaction Guarantee

Try the first lesson and if you’re not satisfied we'll refund any unused lessons.
100% Satisfaction Guarantee

100% Satisfaction Guarantee

Try the first lesson and if you’re not satisfied we'll refund any unused lessons.

About Mary V.

Hi Everyone!

I am the rare combination of a teacher AND a professional singer! I am suitable for people of all ages and levels. I am a certified Music Educator (with a degree) and experience working in International Schools all over the world. I've conducted professional and community choirs, directed shows and even performed in bands as a singer in various styles. I also played violin professionally for several years before switching to voice.

Currently, I am working as a freelance singer and mainly teaching privately. I am interested in taking serious students who really want to put time and effort into improving their voice. If you are committed, I'll be committed. I love warming my students up before important auditions and helping them achieve the goals they want to achieve.

My students are compromised of the following types:

1) College students who are frustrated with their voice teacher and want technical advice that will get the somewhere (passing juries and gaining confidence in general)

2) High School & Middle School students trying to rock their District and All-State and Musical Auditions (this is a year-round process as my students are working on sight-reading ALL YEAR not just the week before the audition.

3) People who really want to sing and have trouble matching pitch etc; and want to find their voice. THIS TAKES WORK but it is possible! I have had a few students come to me telling me how they felt frustrated with previous teachers because they were giving them vague feedback and encouragement when there was clearly no improvement. Do not be afraid to come see me and figure this out! <3

4) People who have a serious interest in singing as a hobby and want to develop their voice further! (Community theater people?)

5) People who have started experiencing vocal problems and need guidance to fix technique (usually they have no technique!). Don't be afraid to seek help!

If you are interested, I suggest buying the smallest package of FIVE 30 minute lessons. We can lump them together to do a few hour lessons ( 2 one hour, one 30minute). This is the best way to get a sense of what a real voice lesson is like. I suggest:

20 minutes of warm ups
20 minutes of a classical piece (no matter your genre of preference)
20 minutes of the genre of your choosing

I suggest a classical piece to all of my students because it stretches your ability. I've had metal singers, rock singers, pop singers etc; and they all become convinced after they try it because the improvement is immense and is immediately noticable in their other pieces (other genres).

Please read below to hear about my stage experience as well as my teaching experience.

In 2020 I'll be making my debut as Mimi in La Boheme at the Morelia Opera Festival as well as my debut with Opera Veto singing the role of Charlotte in Der Diktator.

In September 2019 I had the pleasure of singing Nedda in I Pagliacci again but this time at Varna Opera. Later in the season I covered Tosca in North Wales Opera as well as a few other supporting roles. I made my debut at Sofia National Opera debut (January-April 2019) in the modern chamber opera "Katze Ivanka" as the title role. I'm very busy singing lots of operatic repertoire in solo concerts as well as on the operatic stage.

I am in an interesting environment as I travel often and hear a lot of great voices around me. My environment is healthy but also competitive which forces me to be on my best game at all times.

I think my experience as an opera singer is valuable for a singer of any level or musical interest as singing this art form (opera) requires a strong grasp of technique. If you do not have technique, you will not survive. Operatic singing is not about blowing your vocal cords out, it is about economical singing-understanding how the vocal cords work, how to use breath support effectively (and there are different variants of breath support!) etc; If you are having vocal problems such as hoarseness, difficulty with top notes or pain-I think I am the one to help you. If you are a high school student wanting to shape up your singing, I think I can help you! If you are an amateur who loves to sing but have no idea how to make improvements, I can help you!

My confidence in my ability as a teacher is because I am a certified Music Educator who's worked in high level International Schools for the past 6 years. I have worked a lot with both adults and children extensively in professional settings. In my former job I was responsible for lot of concerts, theatrical productions and instrumental concerts.

If you have a child interested in doing lessons, I may be a great option. I have enthusiasm and in general students seem to really like working with me. In my former job I had high numbers of participation in all of the ensembles which was essentially due to the fact that students enjoyed working with me. I also conducted an adult choir for a few years when living in the Middle East.

Basically, if you pick me-you are getting a great bang for your buck. Singing is a tricky business. A lot of people "teach" singing but have no idea what they are talking about...since we can sing naturally, some people claim to know how to teach it.

With me, you get a professional, patient and experienced teacher and singer!

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  • Speaks Russian, Italian
  • Teaches Beginner, Intermediate, Advanced
  • Bachelor's Degree in Music Education from University of Southern Maine

Reviews (31)

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Hera Jan 20, 2020
Classical Voice · Online

Mary is working with me on audition material for classical and musical theatre pieces. I had no classical experience and she has helped me get ready for several auditions in a short period of time. Mary directed me toward pieces that showcase my best vocal skills. Really built up my confidence level. Highly recommend for audition prep coaching!

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Joel Jan 19, 2020
Classical Voice · Online

Very happy with my first lesson.

Kristofer Santiago Dec 16, 2019
Singing · Online

My name is Kristofer Santiago I am 13 I am also a student of Mrs. Mary and Mrs. Mary and I have classes and so far my voice has been in the changing state, and Mrs. Mary really helped me improve how my voice and my sound was approached and how to basically organize my voice.
Mrs. Mary is so helpful and very kind sweet and no matter what at the end of every lesson my voice becomes stronger and I feel bolder to sing out loud. Mrs. Mary is The BEST instructor EVER.

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Molly Dec 16, 2019
Singing · In studio

I have known Mary as a friend and musician for 18 years. She is a passionate, hardworking, and intuitive musician; these qualities translate into her teaching abilities. Mary engages with people in an unforgettable way, and knows how to explain concepts from many different angles. Mary is experienced in many musical styles, and is an active performer as well as a teacher! It’s always a joy to sing with her :)

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Emma Dec 15, 2019
Broadway Singing · Online

Mary is a really great teacher and is very helpful if you want to pursue singing as a possible career path, as she teaches you techniques to help improve your voice rather than just teaching songs.

When I started taking lessons I couldn't match pitch that well and was kinda self-conscious about my voice. Now, I can match pitches a lot better, is more confident, and gotten bigger parts in shows.

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Adrienne Dec 14, 2019
Vocal Training ·

I took voice lessons a few years ago but did not feel like I was making the improvements I wanted. I felt like I had reached my voice ceiling limits and very much discouraged by my inability to wrangle aspects of my singing. But despite that, I still wanted to see if I could improve, even just a little.

So I sought out Mary for her emphasis on technique. After a few sessions with her, I am beginning to see improvement and progress that felt elusive to me. She completely blew my misconceptions out of the water and reassured me that I have potential and even more room to grow in my singing (voice ceiling shattered).

If you are serious about improving your singing and committed to putting in the time, Mary is the teacher for you. Not only is she a phenomenal professional singer, but she is also also a fantastic teacher. She draws from experience and but also knows how to clearly communicate her extensive knowledge of technique and how the voice works. Mary is very patient, encouraging, and knows how to provide constructive feedback to help you get to your goals and beyond.

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Silvia Soria Dec 11, 2019
Vocal Training · Online

My daughter takes singing lessons with Mary. She loves her. She improved a lot.

Mary is a great teacher.

Ali Oct 29, 2019
Classical Voice · In studio

Mary is an excellent teacher and has helped me progress considerably as a singer, enhancing my technique in preparation for shows and concerts I performed in. She helped me better understand my own voice and vocal range, helping me discover that I was a natural baritone, rather than a tenor. She is highly skilled, enthusiastic, and always came well prepared for lessons ready to tackle new challenges - I would highly recommend her as a teacher!

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Raith Oct 22, 2019
Classical Voice · Online

I first met Mary some 6 years ago as a teenager in high school. I didn't have a strong background in music, but over the years of working with her she has very much helped me get over a lot of the struggles I've had. The number one thing being that she helped me understand that I was not actually a baritone as my school had always labeled me, but a tenor. I had trouble even hitting a Tenor E4 when I first started and now I can extend up to D5 fairly consistently. She's not only fun to work with, but has a great ear for what's going wrong and how to fix it. She's helped me with a lot of my auditions and I owe a lot of my personal success to how hard she's pushed me and how she's given me the confidence to do music that I never thought I could do. She is one of the best teachers you will ever find. I've worked with several voice instructors but none of them ever felt as impactful. Highly recommend Mary to everyone looking to improve their singing.

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Sophia S. Oct 22, 2019
Singing · Online

I have really enjoyed the lessons I have with Mary and I have been able to really improve with her help. She has helped me with my confidence, she is very patient with me, she keeps my goals in mind with her lessons, she keeps in mind the type of voice that I have, and she helps me truly understand what I'm learning. I could not ask for a better teacher.

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Hashem Aug 28, 2019
Singing · In studio

Mary was my first singing teacher and honestly, I could not have asked for anyone better. She taught me everything from the blindingly obvious basics of vocal technique to the more subtle nuances of history and context behind pieces. She also taught vocal technique in a very intuitive way, so that you always knew where the sound came from and how every slight change in posture or mouth shape affected the quality and character of sound.

Her singing lessons have been truly invaluable to me and are the reason I still actively sing today. Thanks to her that I was also able to get a singing scholarship at my uni.

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Dwayne Aug 28, 2019
Broadway Singing · Online

Mary made my dream come true by preparing me for the title role in one of the world's favourite family musicals, the beloved "Jesus Christ Superstar!". Mary's incredible insight into the music and her natural ability to make people feel at ease meant I was rocking out those high notes in no time!

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Peter Aug 28, 2019
Opera Voice · Online

I’ve made incredible progress since starting lessons with Mary! I feel more confident and know that Mary can guide me well because of her on-stage experience!

Thank you and looking forward to continuing the lessons!

Heidi Aug 27, 2019
Singing · Online

Mary is very patient and knowledgeable in how the voice works. I've been working with her for a few months ( I'm a beginner) and she has been very patient and helpful. I've seen lots of improvement working with her.

Julietta Jul 28, 2019
Vocal Training · Online

Very friendly and very helpful! It’s always fun and motivating working with Mary and I’ve already improved after only a few months of working with her!

Sarah Jul 11, 2019
Classical Voice · Online

I have only been working with mary for about 3 months. But I have seen great improvements in my singing techniques. She provides great warmup that work on all aspects of the voice to ensure that the voice is developed in all registers. She is a wonderfully encouraging and enthusiastic teacher while also being extensively knowledgeable about technique. She is serious about improving skills but also makes the lessons comfortable and fun. I really like the convience of scheduling lessons and doing lessons online. She is also very good with german and french diction.

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Aurelie Jul 11, 2019
Opera Voice · Online

Mary is a great voice teacher with great skills. She makes you rethink the whole process of singing, with out-of-the-box techniques! Highly recommend her!

Sun Jul 11, 2019
Singing · Online

Mary made me feel very comfortable singing and helped me figure where I needed to improve and how to go about it. Highly recommend.

Brad May 8, 2019
Classical Voice · In studio

Mary Vallaincourt was a personal mentor to me during my student-teaching internship in Bahrain in completion of my studies in Music Education at the University of Southern Maine, USA.

Not only did she guide me through my first classroom teaching experiences, she also taught me valuable lessons in both vocal and non-vocal performance. I worked closely with her for six months and was able to witness her professionalism first-hand. She’s a wonderful teacher and a wonderful artist. If you have the opportunity to work with her, don’t miss it.

Miss you, Mary :)


Brad Longfellow
Music Teacher, Piano Player, Singer
Nashville, TN, USA

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Renaldo Mar 27, 2019
Vocal Training · Online

Mary has consistently delivered sound vocal advice for my students that I've referred to her. I highly recommend her for her vast knowledge and ability to explain complex concepts in an accessible way for optimal learning. A fine teacher. 5 stars!

Gabriel Mar 27, 2019
Broadway Singing · Online

Mary's teaching is well paced and mild - mannered. She helped me push my vocal talent further. She coached me through a local production of Wicked, which went very well. Thanks Mary :)

Chris Mar 27, 2019
Vocal Training · Online

Mary is diligent in her line of work and has most certainly helped me a lot in many ways such as with my vocal training. She was very kind and considerate throughout our lessons and has done her utmost to help me reach my fullest potential!

Vivian Mar 27, 2019
Opera Voice · In studio

Mme Vaillancourt is a wonderful teacher. She is attentive, patient and creative. Her breathing exercises and vocalises helped me reach a better vocal performance and I am very grateful for it.

Jacob Mar 12, 2019
Classical Voice · Online

Mary really knows her stuff. Excellent teacher. She doesn’t waste time; rather she fill the lesson with helpful exercises and explanations that are tailored to your voice and being out your best sound. Highly recommended.

Jean Pierre Jan 27, 2019
Ear Training · Online

Mary was highly instrumental to developing my Ear training skills. Through different excercises I find I am more sensitive to pitch and recognising intervals and chords etc.

She was very patient and had relevant feedback to the problems I was having, and achieved very quick results

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Denise Jan 26, 2019
Vocal Training · Online

Mary is an amazing teacher. First of all, she is well versed on technique and well trained. Second of all she is an inspiration -- both extremely talented and hard working. Third, she is entirely devoted to her students: tuned in, respectful, a good listener, responsive, encouraging, providing wonderful diagnostics and bringing the right expertise and training to raise students to new levels. She is a whirlwind of talent, hard work, experience and devotion.

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Kathy R Jan 25, 2019
Vocal Training · Online

Mary started teaching my daughters when she was in Maine after a friend recommended her. When she returned to Bulgaria, they started online lessons, which have been convenient and successful. Mary has gone above and beyond, offering online warm ups before auditions and additional support during solos. Mary has been instrumental in helping them step outside their comfort zone, in our aging them to audition whenever possible to get more experience. She balances the wants of my teenager to sing more pop music with the enthusiasm to encourage them to also try more challenging music. I highly recommend Mary if your child is serious about improving their musicality.

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Kevin Jan 24, 2019

Mary is a very thoughtful, caring person and teacher.

Jenny Jan 24, 2019
Classical Voice · Online

My daughter takes voice lessons from Mary and has improved very much with both her voice and her confidence. Mary is dedicated to her students, offering extra support when an audition or big performance is coming up. We have been very grateful for this!

Kathryn R. Jan 24, 2019
Vocal Training · Online

My daughters started taking lessons with Mary when she was home in Maine. I was sceptical of online lessons when she returned to Bulgaria and returned to her opera, but I was happily surprised. Mary helped both of my daughters markedly improve. The time difference makes some scheduling challenging, but Mary works very hard to accommodate. Not only has she been wonderful about working with my busy girls schedules, she has gone above and beyond, setting up times to warm the girls up for auditions on site via FaceTime I can’t recommend Mary highly enough. She is relatable to my teenagers, challenges them, encourages them, and has helped marked improve my daughters performance.

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Kathryn Jan 24, 2019
Vocal Training · Online

I have been taking vocal lessons with Mary for about a year and a half and have made great progress vocally. She is always very constant and communicates well. At first I was nervous to take lessons via face time/ Skype, but it works very well. From preparing for auditions to working on classical or modern music she always helps to improve my sound and how I present myself. I would highly recommend her if you are looking to improve your voice.

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Zalatrice - Suor Angelica
Aug 2019 - Present

North Wales Opera

Lola - Cavalleria Rusticana
Aug 2019 - Present

North Wales Opera

Tosca Cover
Aug 2019 - Present

North Wales Opera

Nedda - I Pagliacci
Aug 2019 - Present

Varna Opera Festival

Woglinde - Das Rheingold
Jul 2019 - Aug 2019

DMV Berlin

Woglinde in Das Rheingold

Soprano Soloist
Nov 2018 - May 2019

Sofia National Opera

Recital - Soloist Katze Ivanka - Chamber Opera in Bulgarian Magic Flute for Children - Queen of the Night

Cover Soloist - L'Elisir D'amore
Sep 2018 - Oct 2018

Rousse State Opera

Blondchen - The Abduction of Seraglio Adina - L'Elisir D'Amore

Soprano Soloist
Oct 2017 - Oct 2018

State Opera Stara Zagora Opera

Choir in dozens of productions Vesselina Kasarova Masterclass, Soloist Vesselina Kasarova Masterclass Gala Concert, Soloist Nedda - I Pagliacci

Soprano Soloist
Jul 2015 - Aug 2017

Mediterranean Opera Studio

This is training program but very rigorous with many fantastic teachers. I sang several solo performances during this time both on stage and in masterclasses.

Primary Music Teacher
Aug 2014 - Jul 2017

International School of Moscow

-Designed an original, compulsory curriculum for KS2 and KS3 students which included weekly lessons on orchestral instruments Managed and successfully created a strong team of individual music teachers who have been enthusiastically received by students, parents and teachers Developed various instrumental and choral ensembles in both Upper Primary and Secondary which maintained high attendance, enthusiasm and quality Tutored students in sight-singing, ear training, music history, and music theory for ABRSM exams Organized several events including studio recitals, productions and concerts outside of compulsory curriculum which had high parent and student attendance Organized and hosted the International British Schools Foundation Gifted & Talented Festival in Moscow which was attended by 500+ students and faculty members from all over the world Was personally invited (2016 & 2017) to conduct the International COBIS International Music Festival Symphonic Orchestra Students received awards in International COBIS International Music Festival for Brass, String, Woodwind solo and ensemble categories

Voice/Violin/Theory Teacher
Feb 2013 - Aug 2014

British School of Bahrain

Assistant Music and Stage direct West Side Story Stage manage school production of West Side Story Teach private voice, violin, guitar and piano lessons Tutor students in sight-singing, ear training, music history, and music theory for ABRSM exams Teach different choral and instrumental classes ranging from 5-16 age students


Master's Degree in Opera Studies (on-going)
Sep 2016 - Present

Gneissin Academy - Moscow

Bachelor's Degree in Music Education
Sep 2005 - Jan 2011

University of Southern Maine



Limited Proficiency


Professional Proficiency


Music K-12
Dec 2011

Maine Department of Education

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