Mellow Yellow Paul McCartney can be heard as one of the background revellers on this track, but the "quite rightly" whispering answering lines in the chorus is not McCartney but rather Donovan himself. Donovan had a small part in coming up with the lyrics for "Yellow Submarine", and McCartney played bass guitar (uncredited) on portions of Donovan's "Mellow Yellow" album. In 2005, the track was remastered by EMI Records for the "Mellow Yellow" album re-issue. "Mellow Yellow" was covered in 1967 by soul singer Big Maybelle on her album "Got a Brand New Bag". It was also covered in 1968 by British
Mellow Waves project. One track, "Mellow Yellow Feel", dates back to 2012. Lyrics for two of the album's songs, "If You're Here" and "Dear Future Person", were written by Shintaro Sakamoto. Another track, "The Spell of a Vanishing Loveliness" was written by Miki Berenyi, who Oyamada learned a decade earlier was a distant relative. Distinct sounds have been used to represent sonic themes on previous Cornelius albums—a glass wind chime for "Sensuous", and water for 2001's "Point". Oyamada said the tremolo served a similar function on "Mellow Waves", likening the sound to that of a continuous wave. Similarly, Oyamada chose the album's