Singing in all registers with the same ease as when you speak

With the SLS technique you will be able to sing both higher and stronger, while avoiding your voice getting too tired. You can shape the tone and sing in all styles with an anchored SLS technique. You can focus on the dissemination, the story, and the message. It is just as easy to sing as it is to talk!

Once you have learned to use the SLS technique, you will without problems be able to sing at least three registers, high and low, with a wide range of free and rich tones. A good metaphor for SLS technique is that when it works, it feels like you are running on train tracks, and you do not fall off when you change tracks (register). You can move easily in at least three octaves on the same rails without having to cover a switch (from chest to head voice). With the SLS technique it´s like being on the same track all the time - and you do not have to cover up your cracks when you change the registers.


I am deeply grateful to have found Søren as my singing teacher! Since I joined him some years ago my voice evolved enormously, I can suddenly reach the high notes, singing without getting hoarse - I can sing freely. My voice has more tone and strength than it ever had before. I really like that when I come to see Søren, it is the voice that is in focus. He shows honesty which I greatly appreciate. Søren also has a good understanding of how singing can be a personal and sensitive thing. I have been through many singing teachers, but never one that has helped me to  progress in such a short time as Søren Lee and Speech Level Singing. THANKS Søren, I am a fan! :)
– Louise Lund Gade


IMG_0040SLS technique is when your larynx remains in a neutral and relaxed position when you sing. At the same time you keep the vocal cords collected from the lowest to your highest note.
This means you will avoid cracks in your voice, but more importantly the muscles around the vocal cords will relax, and you will avoid the tensions that prevent your voice from exploiting its full potential.



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Larynx - Adam's apple - moves up when you sink, and down when you yawn.
When we talk, the larynx usually will be in a neutral position. But in singing many people will raise the larynx when singing high notes, and vice versa at low tones. The voltages that this entails, is transmitted to the voice and makes straining.  Over longer time, tensions can have a debilitating effect.


Søren is a super singing teacher! He has opened my eyes to the point that now I am able to sing songs that I before never thought would be possible. He goes into detail so I get the right exercises for my voice. SLS feels natural and right, and has given my voice a lot more strength and tone, I highly recommend it. I feel in good hands with Søren and know he takes gently care of my voice while he at the same time challenges it. Also he is just a really nice guy!
– Karoline Leistiko


I’ve just passed one year at Søren Lee´s vocal studio, and it's the best thing that ever has happened to my voice. He is the best singing teacher I have ever been training with, and you always have a super time with Søren. You really learn things the right way.
– Carsten Lender Music teacher / professional musician


One voice - no breaks - freedom

You've probably experienced when there are some breaks in your voice, or that you might have two very different tones in your voice. Most often it is very powerful on the lower notes, and somewhat thinner on the higher notes.

IMG_0036-800pxYou build a bridge between the head and the chest voice, which is called the mix, which is a mixture of the low notes and high notes, for example: Most of us have tried to sing a song and suddenly your voice breaks from having a thick rich sound, to become a thin and uncertain tone in the higher registers. SLS technique makes the higher register stronger and delivers a much more filling and rich resonance.

Your mix is therefore the register that sits right between your deep tones that resonate in the chest (chest voice), and your highs which resonates in the head (head voice). That’s why the bridge is build - between the low and high notes, which is the place for most breaks in the voice.
When the bridge is trained and has become strong enough, you do not longer have to worry about whether the voice can make and hold the high notes, or whether it disappears in the lower notes.

Some people may have a very nasal voice when talking or singing, others might have a more gruff voice, like Sylvester Stallone. Others may have a flat or tense voice. We can with some simple exercises do something about that so that the voice gets the natural beautiful ambience, which you are born with.

You will get a huge freedom to sing whatever you want, because you are not prevented by the fact that a desired tone is in the middle of your break

You will find that the problems that you used to have with your voice in the low and high registers will disappear.

SLS technique gives you a great feeling of having one voice, right from your lowest tone to your highest. But it requires targeted training to get there. This is the training that I can give you.

Today I am the only Certified SLS singing teacher in Copenhagen.

This is what one of the world's best singing teachers from the United States said to me when I mentioned that I would start teaching SLS technique. "Søren you are very talented and we are excited two have you on board".


I have been singing choir both in primary and secondary school and have been singing all my life.  I realised that I started having problems with my singing when my voice went from child voice to grown voice. These problems began to manifest themselves: It got more difficult to sing the high notes, and my voice began to crack in the various transitions. The more I tried to avoid it, the worse it became. It was increasingly more frustrating and it took away some of my singing joy. Despite the fact that I took solo singing lessons with various singing teachers, I never managed to change my singing technique. One day I searched the web for singing lessons and discovered Søren Lee's website. Søren describes a number of issues that his singing technique can help. I felt as if he might have heard me sing, he described the problems I had with my singing. I therefore contacted Søren to try a lesson, and I have no regrets. Søren teaches in a completely different way than I've ever experienced before. He has trained my voice with singing exercises that has loosened up the problems I had with my voice. Now I can sing freely without breaks. I would highly recommend to everyone, both experienced and novice singers, to take singing lessons with Søren.
– Maria Friis Larsen


I have gradually received singing lessons from Søren Lee for 3 years. It is instructive, nice and improves my quality of life. Highly recommend it.
– Martin Lipsøe singer and business man


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Søren Lee
Tel/Text: +45 50 72 18 13
Vesterbrogade 98A, 1. tv
1620 Copenhagen V
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Singing lessons take place in Vesterbro Copenhagen or on Skype