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Why learning with Classgap?

Satisfaction guaranteed

If you're not completely satisfied after your first class, we'll refund your purchase.

If you didn't do the lesson, it's cancelled or you are not completely satisfied within 24 hours passed your first lesson, we'll help you find a new tutor or refund your purchase.

Change the date at any moment

You can change the date of the class if something unexpected happens

Pay once you've received the lesson

We will make the payment of the lesson when finished

You will need to enter your payment details. In the case of individual class bookings the amount will be charged at the time of the class, but in the case of packs the payment is made in advance.

Konstantin C.

He's from Bulgaria , currently resides in Spain



over 10 years of experience teaching online classes

  • Violin Beginner, Intermediate, Advanced
  • Music Beginner, Intermediate


SpanishFull proficiency

EnglishFull proficiency

RussianWorking proficiency

DutchConversational skills


Degree Sofia Conservatory, Bulgaria
Degree Rotterdam Conservatory, Netherlands (Jazz violin) Studying


According to your level, your goal and the time you spend practicing, I offer you dynamic, ever changing and fun lessons. If you really want to learn to express yourself trough the violin, I have the patience to teach you how.

Book an online lesson (The calendar displayed shows your local time)

Konstantin C. accepts booking with at least 24 hours in advance.

hours Monday

About me (pictures, hobbies, extracurricular interests...)

Music Música


Rosana Chiapella
Eres un buen profe y con el he aprendido mucho. Es paciente, le gusta afinar en las clases y siempre, siempre está atento a cualquier cambio. Ante todo es un gran profesional del violín, lo vive y le gusta, es su pasión. Gracias por estos años.
Genial. Tanto en repertorio clásico como en improvisación. Buena psicología con el alumno.
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Frequently Asked Questions

• Can I cancel a booking?

Yes, you can cancel booking up to 8 hours before the lesson starts, indicating the reason for the cancellation. We will study each case personally to carry out the refund.

• How do I pay for the lesson?

At the time you select a lesson or package of hours, you will make the payment through our virtual payment service. You have two options:
- Debit / Credit
- Paypal
Once the payment is settled, we'll send you an e-mail with the booking confirmation.

• Can I modify a booking?

Yes, something unexpected can always happen, so you can change the time or day of the lesson. You can do it from your personal area in "Scheduled lessons" through the option "Change date".

• How does a lesson at Classgap happens?

The class is done through classgap’s virtual classroom. Classgap was developed specifically for educational purposes, including many useful features such as: digital whiteboard, online text editor, webcam, screen sharing and many more.

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$ 18 /h 15 minute trial lesson get $5 off