Classical music voice teachers or from completion of a formal program offered by a Conservatory, college or university, such as a Bachelor of Music or Master of Music degree (which includes individual lessons from professors). In classical music, "...extensive formal music education and training, often to postgraduate [Master's degree] level" is required. Performance of classical music repertoire requires a proficiency in sight-reading and ensemble playing, harmonic principles, strong ear training (to correct and adjust pitches by ear), knowledge of performance practice (e.g., Baroque ornamentation), and a familiarity with the style/musical idiom expected for a given composer or musical work (e.g., a Brahms
Music of Argentina and Latin America, and has received several honors in 60 years of history. Another well established orchestra is the Argentine National Symphony Orchestra. Prominent Argentine composers in the genre include symphonic composer Juan José Castro, Alberto Williams, who was known for his early fusion of nativist and classical genres, Carlos Guastavino, known for his romanticist works, and Alberto Ginastera, a composer considered one of the most important Latin American contributors to classical music. Internationally known performers include pianist Martha Argerich, violinist Alberto Lysy, guitarist María Isabel Siewers, tenor José Cura, mezzo-soprano Margherita Zimmermann, and pianist and conductor Daniel Barenboim, who