Final answer:
The subject of this question is Arts, specifically music and visual art.
Step-by-step explanation:
The subject of this question is Arts, specifically music and visual art.
The question references various musical works, such as The Beatles' "Abbey Road" album, a memorable concert, and Beethoven's Ninth Symphony. These musical references indicate the topic of music.
The question also mentions artists Eugene Delacroix and Francisco Goya, who broke with the cool, cerebral idealism of Neo-Classicism. This indicates the topic of visual art.