Answer 1:
(B) Two players on one Piano
Piano four hands is a kind of piano duet in which the two players perform on a single piano. A duet with the players performing separate instruments is usually referred to as a piano duo. Music written for piano four hands is normally printed so that the part for each player controls the page which is directly contrary to him.
Answer 2:
(C) Allergro
The Symphony No. 4 in E minor, by Johannes Brahms, is the end of his symphonies. Brahms started struggling on the piece in Mürzzuschlag, then in the Austro-Hungarian Empire, in 1884, just a year after finishing his Symphony No. 3. It was premiered on October 25, 1885, in Meiningen, Germany.
Answer 3:
(C) Three
The usual Romantic concerto remembered the most general features of the Classical concerto. It was an extensive work in three movements, in a fast/slow/fast sequence. The single part comprises lyric moments and dazzling passage work, and there was at least one cadenza.
Answer 4:
(A) Opera buffa
Gioachino Rossini, in full Gioachino Antonio Rossini, an Italian composer regarded for his operas, especially his comic operas, of which The Barber of Seville (1816), Cinderella (1817), and Semiramide (1823) are amongst the best recognised. Of his later, larger-scale dramatic operas, the most extensively heard is William Tell (1829).
Answer 5:
(D) Night song
A nocturne (from the French which meant nocturnal, from Latin nocturnus) is normally a musical composition that is encouraged by, or evocative of, the night. Historically, Nocturne is a very ancient term practiced for night Offices and, since the Middle Ages, to divisions in the canonical hour of Matins.