Face-to-face and online lessons available for different levels and ages. STRUCTURE of 1 hour class: 10 min warm-up. Scales, arpeggios, double strings, and mechanics exercises: Feuilleard, Sevsik, Cossmann, Starker, Tortelier.... 15min to work on whims, studies and technical works by Popper, Piatti, Dotzauer, Duport, Lee, Servais, Lindley, Franchomme, Grutzmacher etc. 35min of free repertoire, working on a multitude of styles, techniques and languages. METHODOLOGY: -Pedagogical material and free sheet music with fingerings and bows. -Preparation for entrance exams: 4/4 students pass the entrance exam for professional education in 2022. -Suzuki and preparation for ABRSM and Trinity College exams (RU) -Stretches, physical therapy exercises, mindfulness and Alexander Technique. -Free service via WhatsApp. -Analysis of videos and recordings with score annotation -Microphones and HD cameras for an optimal connection, optional recorded classes. -Free advice when testing, renting and buying instruments. -Pedagogical experience, friendly, honest treatment and positive attitude. ARTISTIC BIOGRAPHY: His work ranges from modern music recordings at Abbey Road Studios to concerts for the BBC, New Generation Baroque 2021. Recent doctorate and scholarship with Distinction at the Royal College of Music in London (Artist Diploma), Javier has also studied at the Guildhall School of Music and Drama with Rebecca Gilliver, London Symphony Orchestra, as well as at the Koninklijk Conservatorium in The Hague, Netherlands and the COSCYL of Salamanca. He currently works as a cellist giving concerts throughout the country, as a researcher at the National Library of Spain and is studying a degree in Musicology at the Royal Conservatory of Music in Madrid. LOCATION: In my music studio or online, although travel to the student's home is contemplated, calculating time and costs.