Performance practice or performing practice (= German: Aufführungspraxis) indicates the attempt to perform music in the way envisaged originally by the composer. The second half of the 20th century has brought a significant interest in musicology and the technology and scholarship necessary to the construction of copies of earlier instruments and to the study of methods of performance on these instruments. The study of performing practice extends from the study of music of the earliest periods to that of relatively recent periods of the 19th and early 20th centuries.