You To", respectively. It has been noted for its slowed-down rhythm track and backwards vocals, anticipating the studio experimentation of "Tomorrow Never Knows" and other songs on Revolver, which was released in August 1966. Musicologist Walter Everett cites its closing section as an example of how the Beatles pioneered the "fade-out–fade-in coda", a device used again by them on "Strawberry Fields Forever" and "Helter Skelter", and by Led Zeppelin on "Thank You". From its introduction in "Rain", the Hindustani gamaka vocal ornamentation was adopted by several bands in the late 1960s, including the Moody Blues (on "The Sun Set"), the Hollies ("King Midas in Reverse") and Crosby, Stills & Nash ("Guinnevere"). "Rain" was first mixed in stereo in December 1969 for its inclusion on the US compilation album Hey Jude early the following year. The track subsequently appeared on Rarities in the UK and the Past Masters, Volume Two CD. Promotional films The Beatles created three promotional films for "Rain", following on from their first attempts with the medium for their December 1965 single. Authors Mark Hertsgaard and Bob Spitz both recognise the 1966 promos for "Paperback Writer" and "Rain" as the first examples of music videos. In the case of "Rain", it marked a rare instance where the Beatles prepared a clip for a B-side, later examples being "Revolution" and "Don't Let Me Down". The films were directed by Michael Lindsay-Hogg, who had worked with the band on the television programme Ready Steady Go! One shows the Beatles walking and singing in the gardens and conservatory of Chiswick House in west London, and was filmed on 20 May. The other two clips feature the band performing on a sound stage at EMI Studios on 19 May; one was filmed in colour for The Ed Sullivan Show and the other in black and white for broadcast in the UK. McCartney was injured in a moped accident on 26 December 1965, six months before the filming of "Rain", and close-ups in the film reveal a chipped tooth. McCartney's appearance in the film played a role in the "Paul is dead" rumours from 1969. The band also promoted the single with a rare TV appearance, miming to both songs on the BBC show Top of the Pops on 16 June. The Beatles' Anthology documentary video includes an edit combining the Chiswick House promo for "Rain" with shots from the two black-and-white EMI