Gagaku is a type of Japanese classical music that was historically used for imperial court music and dances. Gagaku was developed as court music of the Kyoto Imperial Palace, and its near-current form was established in the Heian period (794–1185) around the 10th century. Today, it is performed by the Board of Ceremonies in the Tokyo Imperial Palace.

In Japan, music includes a wide array of distinct genres, both traditional and modern. The word for "music" in Japanese is 音楽 (ongaku), combining the kanji 音 on (sound) with the kanji 楽 gaku. Japan is the world's largest market for music on physical media and the second-largest overall music market, with a retail value of US$2.7 billion in 2017.