An alumnus of Princeton University has donated $10 million for the 23,000-square-foot Music Building that will be part of the arts complex currently under construction near University Place and Alexander Street. The donor and his wife have remained anonymous for now, but the building will eventually be named by them.

“Attending Princeton was a formative experience,” said the donor in a statement issued Monday by the University. “It was there that I developed a deep and lasting interest in the arts. When my wife and I visited campus and witnessed the engagement, curiosity, and passion of so many students in so many areas of arts study, the decision to be a part of the team in promoting the arts at Princeton was an easy one. We believe that all students should have access to the arts and to the music program as part of the unique educational experience of Princeton.”

The three-story building, designed by architect Steven Holl, will house the University’s Department of Music and the Lewis Center for the Arts, which is currently operating out of a building at 185 Nassau Street. With a performance and rehearsal space, acoustically advanced practice rooms, teaching studios, and a digital recording studio, there will be room for increased and enhanced programming.

Dance activities will be located at the Wallace Dance Building and Theater, which was donated by Monte and Neil Wallace, members of the classes of 1953 and 1955, respectively. Administrative and faculty offices and an art gallery will be housed in a tower next to the music building, which will provide supplementary space at the 47,000-square-foot Woolworth Center of Musical Studies near the center of the campus.

The $320 million arts complex was launched in 2006 when then President Shirley M. Tilghman announced plans to substantially increase arts activities on campus, including establishment of an arts neighborhood. Late alumnus Peter B. Lewis, a 1955 graduate and trustee, contributed $101 million to help launch the initiative.

As part of the project, the Princeton Dinky train station has been relocated 460 feet south of its former location. The new station opened last November. A restaurant and cafe planned for the historic, former station buildings was to be operated by the Terra Momo Group, but the company withdrew from the project last January. A new operator has yet to be selected.

“This splendid gift will benefit our student musicians and the audiences who come to hear them,” University President Christopher L. Eisgruber said of the recent donation. “The additional space is an essential element in enabling our arts intiatitve — launched less than a decade ago — to flourish. We are excited about seeing the arts at Princeton reach their full potential, and we are grateful to our generous alumni and friends for helping to make it possible.”