2023 marks the 400th anniversary of Johann Heinrich Schmelzer, an important composer of the early Baroque era. He is remembered for having been one of the most revered violinists of his time, an important figure of the Vienna imperial court where he fostered close relationships with Leopold I, and an essential link in the development of instrumental music. Nikolaus Harnoncourt was the first conductor to exhume his music and put it on record. This collection includes sonatas from manuscripts kept in the Kroměříž (Czech Republic) library and his published Concentus musicus.