Victor Herbert was a prominent Irish-American composer, conductor, and cellist, known for his contributions to the American musical theater. However, "Indian Summer" is not a composition by Victor Herbert. Instead, it is a song written by Victor Herbert's contemporary, Al Dubin, with music composed by Victor Herbert's son, Herbert Reynolds. The song gained popularity in the early 20th century and has been covered by various artists over the years. It's a romantic and nostalgic piece, capturing the essence of the fleeting beauty of an Indian summer.