of him leaning on Ono. Her album included raw, harsh vocals, which bore a similarity with sounds in nature (especially those made by animals) and free jazz techniques used by wind and brass players. Performers included Ornette Coleman, other renowned free jazz performers, and Ringo Starr. Some songs on the album consisted of wordless vocalizations, in a style that would influence Meredith Monk and other musical artists who have used screams and vocal noise instead of words. The album reached No. 182 on the US charts. When Lennon was invited to play with Frank Zappa at the Fillmore (then the Filmore West) on June 5, 1971, Ono joined them. Later that year, she released Fly, a double album. In it, she explored slightly more conventional psychedelic rock with tracks including "Midsummer New York" and "Mind Train", in addition to a number of Fluxus experiments. She also received minor airplay with the ballad "Mrs. Lennon". The track "Don't Worry, Kyoko (Mummy's Only Looking for Her Hand in the Snow)" was an ode to Ono's missing daughter, and featured Eric Clapton on guitar. In 1971, while studying with Maharishi Mahesh Yogi in Majorca, Spain, Ono's ex-husband Anthony Cox accused Ono of abducting their daughter Kyoko from the kindergarten. They reached an out of court agreement and the charges were dismissed. Cox eventually moved away with Kyoko. Ono would not see her daughter until 1998. During this time, she wrote "Don't Worry Kyoko", which also appears on Lennon and Ono's album Live Peace in Toronto 1969, in addition to Fly. Kyoko is also referenced in the first line of "Happy Christmas (War Is Over)" when Yoko whispers "Happy Christmas, Kyoko", followed by Lennon whispering, "Happy Christmas, Julian." The song reached No. 4 in the UK, where its release was delayed until 1972, and has periodically reemerged on the UK Singles Chart. Originally a protest song about the Vietnam War, "Happy Xmas (War Is Over)" has since become a Christmas standard. That August the couple appeared together at a benefit in Madison Square Garden with Roberta Flack, Stevie Wonder, and Sha Na Na for mentally disabled children organized by WABC-TV's Geraldo Rivera. In a 2018 issue of Portland Magazine, editor Colin W. Sargent writes of interviewing Yoko while she was visiting Portland, Maine, in 2005. She spoke of driving along the coast with Lennon and dreamed of buying a house in Maine. "We talked