The original recording by The Beatles:

McCartney double-tracked lead vocal; Lennon backing vocal; Erich Gruenberg, Derek Jacobs, Trevor Williams, José Luis Garcia: violin; John Underwood, Stephen Shingles: viola; Dennis Vigay, Alan Dalziel: cello; Gordon Pearce: double bass, Sheila Bromberg: harp

The recording by Peter Devilee:

Peter Lead & backing vocals; Erich Gruenberg, Derek Jacobs, Trevor Williams, José Luis Garcia: violin; John Underwood, Stephen Shingles: viola; Dennis Vigay, Alan Dalziel: cello; Gordon Pearce: double bass, Sheila Bromberg: harp

Recorded: 17, 20 March 1967, Abbey Road 2.
Producer: George Martin, Engineer: Geoff Emerick
Released: 1 June 1967 (UK), 2 June 1967 (US)

More on this song:

• Wiki-page
• Beatles Bible
• Ian MacDonald
• Mark Lewisohn
• Walter Everett
• According to Rolling Stone Magazine, this song ranks 82 in their 100 Greatest Beatles Songs-list

Recorded: 26 February 2016 - 3 April 2016; Mixed and mastered: 30 April - 15 May 2016, & 15 April 2021 - 5 June 2021, Homestudio 1
Producer: Peter Devilee; Engineer: Peter Devilee
Release: 15th May, 2016 & 5th June, 2021 (remix with orchestra track from 50th anniversary release Sgt. Pepper)

• Other covers of this song.
• Mijn logboek over de recording en mix sessies (in Dutch).