By Martin Harlow

Modern clarinet players owe a debt of gratitude to Iwan Müller (1786–1854), whose developments to the clarinet in the early nineteenth century served to shape many of the features found in the instrument that is used today. In 1809, at the Saale zum römischen Kaiser in Vienna, he premiered Philipp Jakob Riotte’s (1776–1856) Clarinet Concerto in C Minor, op. 36, the first known work composed specifically the thirteen-keyed, “omnitonic” instrument he had recently developed. Recently published in A-R’s Recent Researches in the Music of the Classical Era series, this important work offers a new perspective on the clarinet’s development at a seminal point in its history.

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