protégés Allan Kaprow, Brecht, Mac Low, Al Hansen and the poet Dick Higgins. After Cage finished teaching at the New School in the summer of 1960, Ono was determined to rent a place to present her works along with the work of other avant-garde artists in the city. She eventually found an inexpensive loft in downtown Manhattan at 112 Chambers Street and used the apartment as a studio and living space, also allowing composer La Monte Young to organize concerts in the loft. They both held a series of events there from December 1960 through June 1961; the events were attended by people such as Marcel Duchamp and Peggy Guggenheim. Ono and Young both claimed to have been the primary curator of these events, with Ono claiming to have been eventually pushed into a subsidiary role by Young. Ono presented work only once during the series. In 1961, years before meeting John Lennon, Ono had her first major public performance in a concert at the 258-seat Carnegie Recital Hall (smaller than the "Main Hall"). This concert featured radical experimental music and performances. The Chambers Street series hosted some of Ono's earliest conceptual artwork, including Painting to Be Stepped On, a scrap of canvas on the floor that became a completed artwork upon the accrual of footprints. With that work, Ono suggested that a work of art no longer needed to be mounted on a wall and inaccessible. She showed this work and other instructional work again at Macunias's AG Gallery in July 1961. After Ono set a painting on fire at one performance, Cage advised her to treat the paper with flame retardant. She is credited for the album cover art for the album Nirvana Symphony by Toshiro Mayuzumi, released by Time Records in 1962. After living apart for several years, Ono and Ichiyanagi filed for divorce in 1962. Ono returned home to live with her parents, and, suffering from clinical depression, was briefly placed into a Japanese mental institution. Early career and motherhood On November 28, 1962, Ono married Anthony Cox, an American jazz musician, film producer, and art promoter who had been instrumental in securing her release from the mental institution. Ono's second marriage was annulled on March 1, 1963, because she had neglected to finalize her divorce from Ichiyanagi. After finalizing that divorce, Cox and Ono married again on June 6, 1963. She gave birth to their