text: A book on the "art" of the playing this instrument was written by Philip Farkas.
full_question: A book on the "art" of the playing this instrument was written by Philip Farkas. The third section of Telemann's Tafelmusik includes a concerto in E-flat for two violins and two of these instruments. A solo for this instrument opens the second "Promenade" of Maurice Ravel's orchestration of Pictures at an Exhibition. Shostakovich included a solo for this instrument over the strings in the fourth movement of his Fifth Symphony. A pair of these instruments is featured in Brandenburg Concerto No. 1. This instrument was played by Joseph Leutgeb, for whom Mozart wrote three concerti. In marching bands, the mellophone typically replaces this related instrument. For 10 points, name this coiled brass instrument, into whose bell a player places one hand to change its pitch.
first_sentence: A book on the "art" of the playing this instrument was written by Philip Farkas.
raw_answer: French horn [or natural horn]