A Baroque orchestra was a mixed-instrument ensemble prevalent during the Baroque era of Western Classical music, commonly identified as 1600–1750, and was typically much smaller than later Romantic orchestras. Its origins trace back to France, where Jean-Baptiste Lully famously added newly designed oboes and transverse flutes to his "Les Vingt-quatre Violons du Roi," with these orchestras often including violins, woodwinds, and essential basso continuo instruments like the harpsichord or theorbo. The size and specific instrumentation were not standardized, varying significantly across Europe from intimate ensembles with one player per part, such as Bach's orchestras of up to 18 musicians, to much larger groups. For instance, Corelli's orchestra in Rome frequently comprised between 35 and 80 players for regular performances, occasionally swelling to 150 for special events. Today, the term "Baroque orchestra" often refers to modern chamber orchestras that provide historically informed performances of early music, a movement inspired by pioneers like Nikolaus Harnoncourt in the 1970s, utilizing period or replica instruments.