Double reed of double reeds for the oboe family of instruments is similar in principle: like the bassoon's reeds, they consist of two pieces of "Arundo donax" cane fastened together with an opening at the tip. However, because the oboe does not have a bocal, the cane must be fastened to a metal tube (the staple), the lower half of which is normally surrounded by a piece of cork. The staple is then inserted into the farrow at the upper end of the oboe. There are many different methods of making reeds and many variations of design have been developed. Players can
Oboe Concerto (Marcello) as the intended instrument for the arrangement, originated after Johann Bernhard's, but may have been copied from an earlier stage of Bach's arrangement. Another manuscript containing Bach's arrangement of Marcello's oboe concerto indicated "J. S. B." as composer on the title page, without mentioning an earlier model, or its composer, for the composition. The ornamentation as indicated in Bach's keyboard version of the concerto works well on harpsichord, but is less suitable for performance on an early 18th-century oboe. Nonetheless Bach's ornamentation has been used for 20th-century publications of the oboe concerto – the ornamentation causes fewer problems when performed