Billy Duffy
New York, NY
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Billy Duffy

Billy D.

New York, NY
Profile-background-check Background Check
This teacher successfully passed a thorough criminal background check with SterlingBackcheck. This badge verifies trusted teacher status.
Profile-student-favorite Student Favorite
This teacher is rated in the top 15% of teachers in the specialty subject. This badge demonstrates subject mastery on a nationwide scale.
Teaching Locations:
Profile-location-online Online
Profile-location-studio Teacher's Studio
Profile-location-home Student's Home
Teaching Locations:
Profile-location-online Online
Profile-location-studio Teacher's Studio
Profile-location-home Student's Home
Levels taught:
Beginner, Intermediate, Advanced
Want to be able to play your favorite songs just by listening to them? If you answered yes, then my ear training course would be perfect for you. I can help your ability to identify pitches, hear the shapes of melodies, and recognize chord progressions. Having a strong ear is extremely beneficial to musicians.

About Billy D.

I am a professional musician based in New York City with a degree from the New School for Jazz and Contemporary Music. I have many years of teaching and performing experience, touring all across Europe and played at many venues such as Carnegie Hall, Jazz at Lincoln Center, the Jazz Standard, and Smoke.

I am a passionate teacher with the priority of making my lessons both enjoyable and effective for my students. In our lessons we will cover a wide array of subjects that will develop your musicianship such as technique, reading music, theory, rhythm, ear training, performance tips, and much more.

I really hope to be working with you soon!


Write a Review
38 Reviews
Profile-location-online Online

Billy does a great job with guitar instruction and brings working knowledge and practicality to the process. Would highly recommend!

Posted Jul 22, 2020
Joe F.
Profile-location-online Online

William is patient and knowledgable

Posted Jul 2, 2020
Profile-location-online Online

First lesson, I'm an older adult who has played for years but wanted to reboot and get back to basics and take it to the next level. William was insightful, enthusiastic, and informative. I'm looking forward to working with him!

Posted May 28, 2020
Profile-location-online Online

Marcus finished his lesson smiling. He liked Billy, he liked what they did and is glad I signed him up for lessons!

Posted May 16, 2020
Profile-location-online Online

Wonderful teacher. Skilled in his craft. My son is excited to learn from William!

Posted Apr 29, 2020
Profile-location-studio Teacher's Studio

Billy does a great job teaching both the instrument as well as the music theory. He keeps instruction interesting by practicing songs students enjoy. He is also extremely flexible and patient.

Posted Nov 9, 2019
Andrew J.
Profile-location-studio Teacher's Studio

Great teacher. Very kind, easy to understand, and covered quite a bit.

Posted Sep 24, 2019
Trevor H.
Profile-location-online Online

Good focus on fundamentals with lots of tricks of the trade for newer players..very patient and helping my son focus on results. Very happy!

Posted Aug 25, 2019
Profile-location-home Student's Home

Billy is a great teacher! He was able to take my background in piano and apply it to the guitar really well. Within just a few weeks I could play a song! 100% recommend.

Posted Aug 22, 2019
Profile-location-studio Teacher's Studio

Billy is a great teacher that makes sure that you have the skills to continue playing guitar. I enjoyed his lessons and learned a lot! He is really nice too.

Posted Aug 9, 2019
Profile-location-home Student's Home

highly recommend Billy.

Posted Aug 8, 2019
Profile-location-online Online

Billy was great with my 12 year old son.

Posted Jul 27, 2019
Profile-location-studio Teacher's Studio

Very patient and conducts the lesson based on strengths and weaknesses in order to form well balance student. 5 stars.

Posted May 31, 2019
Profile-location-studio Teacher's Studio

Billy is great! He is super patient with me and really tries to make sure I understand the basics instead of just memorizing chords. His style is very easy-going and engaging. I definitely recommend Billy as a teacher, especially for beginners.

Posted May 21, 2019
Suzie B.
Profile-location-home Student's Home

Good instructor recommended!

Posted Mar 1, 2019
Profile-location-online Online

Billy is a great teacher, he knows his stuff and teaches really well. He helped me get through an audition for my school Jazz band and I'm learning so much from him.

Posted Feb 4, 2019
Profile-location-online Online

My experience having Billy as an online guitar instructor over the past several months has been excellent! In regards to jazz playing he has helped me to focus on understanding how songs are structured, the relation of chords to each other and ideas for improvisation. He encourages developing a deeper understanding for the music and is patient when explaining new concepts. I would highly recommend him as a guitar teacher :)

Posted Jan 23, 2019
Profile-location-studio Teacher's Studio

This was my first lesson ever and Billy was extremely patient, took the time to teach me music theory. Looking forward to the next lesson.

Posted Aug 31, 2018
Profile-location-studio Teacher's Studio

Billy is a very good and patient teacher. He understands that it takes time to learn something completely new (which for me is music theory) especially when besides the lessons you also work full time. My previous teacher didn't have that patience which makes me value Billy's approach even more. He will do his best for you to understand whatever topic you're struggling with. Highly recommend

Posted Aug 11, 2018
Profile-location-studio Teacher's Studio

This past month I have been taking guitar lessons with Billy. I really love it! He makes guitar seem less intimadting then I thought it was. He is very patient and he seems to really care about teaching. I highly recommend.

Posted Jul 24, 2018
Niamh H.
Profile-location-home Student's Home

Billy was really kind and patient with my 8-year old son and did a great job helping him to convert from the French solfege system of music reading.

Posted May 16, 2018
Claudia M.
Profile-location-studio Teacher's Studio

Being a beginner (guitar) I attended my first class with a positive mind and no set expectations. I left class joyous, as Billy mastered to introduce me to guitar theory in such a simplified manner, which made it easy to grasp. I attended my second class last week, and feel that I have advanced/internalized greatly in such a short period. Further, I appreciate that Billy has always been prompt to attend my inquiries. Based on the aforementioned experiences, I look forward to my upcoming classes, and I’m very curious to know the end result - without hesitation, I'm certain it will be positive. Billy is a very gifted guitar teacher, hope he can teach for many years to come - as many can benefit from his great talents.

Posted Apr 22, 2018
Profile-location-studio Teacher's Studio

I cannot say enough about Billy. At first I wasn’t sure what to expect. Billy put me at ease immediately. I find him professional, friendly and extremely considerate. He also tailors each lesson to his client. I wanted to delve more into theory. Billy knows his stuff across a spectrum of instruments. He wrote music for me and gave me the building blocks for more skills. I can see Billy really loves music and teaching. It shines through every time I see him, and that makes me more hopeful. I’d say that’s as much as you can ask for a teacher.

Posted Apr 20, 2018
Leland V.
Profile-location-studio Teacher's Studio


Posted Apr 10, 2018
Profile-location-studio Teacher's Studio

Great Instructor!

Posted Mar 6, 2018
Rosdeli Marte
Profile-location-studio Teacher's Studio

Billy's approach to ear training really helped me a lot! He went at my pace and made references to popular song a to hear chords that, without context, are hard to hear. He accommodated to my way of learning and went from there. I still use some of the methods he's taught me till this day!

Posted Mar 3, 2018
Profile-location-home Student's Home

Billy is the absolute best! Transcribing rhythms and ear training analysis have always been my weaknesses when it comes to music theory knowledge and finding the right exercises and techniques to improve has always been quite a difficult process to achieve. However, within just a few tutoring lessons from Billy, I started to build a better understanding of music theory as a whole. In every tutoring lesson, Billy was patient, knowledgeable and friendly which quickly benefited my musicality and strengthened my overall friendship and love with music. Thank you Billy!

Posted Feb 15, 2018
Profile-location-home Student's Home

I've never played Guitar before and since trying to play, I have met so many teachers, none of them really helped and were impatient, but having had Billy as my instructor, I have picked it up so quickly. Its only been a few weeks and I'm playing my favourite tunes. I highly, highly recommend! Very sweet and patient teacher, i'm still taking lessons with him :)

Posted Feb 14, 2018
Profile-location-home Student's Home

Billy is a gifted musician who is patient and explains everything clearly for a novice. Really enjoying my lessons

Posted Feb 2, 2018
Profile-location-studio Teacher's Studio

I'm a classical trombonist by training and reached out for help with jazz theory and playing. Billy was an amazing resource who helped me develop concrete playing and practicing skills and become a more confident improviser. He was extremely patient and thorough and took extra time to make sure things would stick. Highly recommended!

Posted Jan 3, 2018
Profile-location-studio Teacher's Studio

Billy is a great teacher! He really knows a lot about Theory and he really helped me in detail with how to get something right. I would recommend Billy for any teaching job, he's really great! Thanks Billy! :)

Posted Dec 27, 2017
Profile-location-studio Teacher's Studio

I played the trombone when I was a kid but lost interest back then. After not playing for about 15 years Billy helped me to get back to it. We covered reading notes, learning a little bit about music theory (keys etc) and of course playing. I wanted to practice with some songs I like and Billy was able to write the notes down for me. This was super helpful and really made me enjoy playing the trombone again! We practiced in a room in the New School, which was cool since I could play as loud as I wanted, compared to back at home where I usually use a mute. He was very patient and friendly and I can highly recommend him as a teacher.

Posted Dec 21, 2017
Profile-location-home Student's Home

Excellent with my 12-year old child, on-time, stays longer to finish lesson. Great communication skills, well rounded.

Posted Jul 7, 2016
Profile-location-online Online

Posted Sep 17, 2021
Laura F.
Profile-location-online Online

Posted Sep 13, 2020
Jordan T.
Profile-location-online Online

Posted Sep 9, 2020
Profile-location-online Online

Posted Aug 21, 2020
Aran M.
Profile-location-online Online

Posted Dec 23, 2019

Photos & Videos

57 Photos & Videos


Music Instructor
Dec 2018 - Present

Real Brave Audio

Freelance Musician
Jan 2012 - Present

Self Employed

Performing, composing, and recording

Guest Trombonist
May 2019 - May 2019

WeBop: Jazz at Lincoln Center

Jun 2018 - Jul 2018

JMI Jazz World Orchestra 2018

Latin Jazz big band of musicians from around the world. Toured Macedonia, Bulgaria, Serbia, Slovenia, and Croatia

Jul 2017 - Jul 2017

JMI Big Band 2017

International jazz band. Toured Croatia, Italy and Slovenia.

Sep 2013 - Jun 2014

New York Pops Orchestra

Aug 2013 - Jun 2014

Jazz at Lincoln Center Youth Orchestra

Jun 2012 - Jun 2014

York College Blue Notes

Teaching Artist
Feb 2014 - May 2014

New York Pops Kids on Stage

Teaching Artist
Apr 2013 - Apr 2013

Corna Music Project


Jazz Trombone
Aug 2014 - May 2018

New School For Jazz and Contemporary Music

Instrumental Music
Sep 2010 - Jun 2014

Frank Sinatra High School for the the Arts



Fluent / Native Proficiency


Bachelor of Fine Arts with Honors
May 2018

New School for Jazz and Contemporary Music


Award for Excellence in Instrumental Music
May 2013

Frank Sinatra School of the Arts

The Musicianship Award for Excellence in Music Theory and Composition
May 2012

Frank Sinatra School of the Arts


International Trombone Association
Sep 2015
The general purposes of the International Trombone Association shall be: To promote communications among trombonists around the world, to improve the artistic level of performance, teaching, and literature associated with the trombone family and to function as a clearing house for trombone-related ideas and information

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