A minor

It is heard on ten recordings, from 1964 to 1970. It sits thickest on Abbey Road, three of its seventeen tracks. 'Things We Said Today' is the earliest, from 1964, and 'I Me Mine' the last, from 1970. 'Your Mother Should Know' and 'While My Guitar Gently Weeps' are two of them. It goes quiet after 1964 and comes back in 1967 for 'Your Mother Should Know'. The singing splits John on three, Paul on three and George on two. All four of them take the lead on 'Carry That Weight'. On 'Happiness Is a Warm Gun': section A, section B, section C. Of those, 'Glass Onion' carries recorder as well, which only two of their recordings do.