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The following project involves a historical evaluation of the Ecuadorian composer and violinist Enrique Espín Yépez, with a focus on his contributions as a pedagogue in violin education. This historical review was accomplished through the conduction of interviews with several violinists from Mexico, Ecuador, and Peru who were students of Espín Yépez. Additionally, an analysis and interpretative proposal were developed for his Tres Danzas Ecuatorianas (Three Ecuadorian Dances) composed for violin and piano.

The present work proposes a study guide for interpreting Camille Saint-Saëns's piece Introduction and Rondo Capriccioso. The guide covers learning resources, exercises, and recommendations to address technical aspects of the violin, offering specific solutions for passages that may pose considerable difficulty during execution. Various methods and authors were considered in assembling this guide, resulting in valuable educational material for violinists. It is important to highlight the versatility of this proposal; it serves not only for revising this specific work but also for addressing similar technical aspects found in the extensive repertoire available for the instrument.

The present research is composed of two fundamental aspects: the musical analysis of the work Cristales for violin and chamber orchestra by the Ecuadorian composer Jorge Oviedo Jaramillo; and its corresponding reduction to the piano of the orchestral score that accompanies the soloist violín. In the first one, a musical analysis will be made in order to understand the essence of the composer, as well as the different musical aspects that make up the work. Consequently, the second theme feeds back on the previous one by means of the elaboration of a piano reduction that preserves the characteristics of the original accompaniment. In this way, the present work aims to offer the academic public greater options for the interpretation of Oviedo's work.

Through the creation of arrangements the present work has the objective of the fusion of academic music with one of the sub genres considered the most extreme within the field of Heavy Metal, the same that will be analyzed from an academic point of view by means of a formal, structural and harmonic analysis, in the same way the arrangist techniques and extended techniques used for the creation of the same will be described. Although there are works that have fused academic music with popular music and we can even find a lot of examples related to Rock and Heavy Metal, this fusion with the more aggressive and extreme sub-genres of Heavy Metal has not been explored for this reason this work is a contribution to academic music specifically to the repertoire for string quartet and even means a possibility of the study of Extreme Metal from an academic musical perspective. Finally after making the arrangements we can conclude that the chamber music has a dynamic / sound spectrum so broad and complete that it has the ability to perform any type of music from something very slow and delicate to something strong and aggressive, on the other hand Extreme Metal nature shows a potential to be transcribed into these formats thanks to its rhythmic richness and virtuosity.

This work aims, providing students and teachers in the field of violin music Ecuadorian courseware for learning the instrument, which is designed for entry level violin with piano accompaniment, the same that has a progressive content for the gradual development of learners.