"Three Works for Trumpet by Antioquian Composers in the 21st Century" is a scholarly book that explores the compositions of three significant composers from Antioquia, Colombia, in the 21st century. It provides a comprehensive analysis of the works by Alfredo Mejía, Johnny Pasos, and Carlos Restrepo, which were written for solo trumpet. The book highlights the history of each piece and offers a detailed examination of the composers. Additionally, it presents a grammatical-structural analysis as well as a technical and interpretative approach to the pieces. The study covers aspects of orchestration, harmony, melody, rhythm, and form to understand the stylistic features of the compositions. An appendix with scores and exercises supports the technical and interpretative performance of the pieces and provides valuable educational resources for musicians.