Formal structure of [151] "Martha My Dear":
          Intro (v)    0:00-0:19
          Verse 1      0:19-0:38
          Middle 8   0:38-1:00
                Extension  1:00-1:20*
          Solo (v)      1:20-1:40
          Middle 8    1:40-2:03
          Verse 2      2:03-2:22
          Coda           2:22-2:28

Comments: The first middle 8 is extended by 20 extra seconds, but a listener does not realize it's an extension until the middle 8 is repeated without the extension later on in the song. This extension is also highlighted by the first use of percussion to that point in the track.

The macro structure of "Martha My Dear" is (roughly) palindromic. This follows [33] "I'll Be Back", [93] "Strawberry Fields Forever", [94] "When I'm Sixty-Four", [97] "Sgt. Pepper's Lonely Hearts Club Band", [98] "Good Morning Good Morning", and [136] "While My Guitar Gently Weeps", all of which also employed palindromic formal designs (and [57] "I've Just Seen a Face", and [114] "All You Need Is Love", which both employed inverse palindromic structures). I say "roughly" because the intro is somewhat lengthy (19 seconds) while it's palindromic counterpart, the coda, is quite brief (6 seconds); and because the first middle 8 is extended, which does not correlate to a strictly palindromic formal design because the second middle 8 is not similarly extended.

[121] "The Inner Light"
The middle 8 is used twice, lasting 8 or 9 measures and 23 or 18 seconds each time (the second iteration transitions to the coda, accounting for the slightly shortened duration), totaling 26.3% (41/156) of the song's duration.

[122] "Lady Madonna"
The middle 8 is used thrice (with the middle of those three replacing vocals with a saxophone solo), lasting 8 measures and 18 or 17 seconds each time, totaling 38.7% (53/137) of the song's duration. The middle 8s also modulate from A Major to C Major.

[123] "Across the Universe"
"Across the Universe" is the 46th Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[124] "Hey Bulldog"
"Hey Bulldog" is the 47th Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[125] "Revolution 1"
"Revolution 1" is the 48th Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[126] "Don't Pass Me By"
"Don't Pass Me By" is the 49th Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[127] "Revolution 9"
"Revolution 9" is the 50th Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[128] "Blackbird"
The middle 8 is used twice, lasting 4.5 measures and 11.5 seconds each time, totaling 16.7% of the song's duration.

[129] "Everybody's Got Something to Hide Except for Me and My Monkey"
"Everybody's Got Something to Hide Except for Me and My Monkey" is the 51st Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[130] "Good Night"
The middle 8 is used thrice, lasting 4 measures and 14 or 15 seconds each time, totaling 22.3% of the song's duration.

[131] "Ob-La-Di Ob-La-Da"
The middle 8 is used twice, lasting 8 measures and 15 seconds both times, totaling 16.0% of the song's duration. The middle 8 tonicizes IV.

[132] "Revolution"
"Revolution" is the 52nd Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[133] "Cry Baby Cry"
"Cry Baby Cry" is the 53rd Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[134] "Helter Skelter"
"Helter Skelter" is the 54th Beatles original not to use a middle 8. Instead, the chorus serves as contrast to the verses.

[135] "Sexy Sadie"
The middle 8 is used twice, lasting 5.5 measures and averaging 11.5 seconds each time, totaling 11.9% of the song's duration.

[136] "While My Guitar Gently Weeps"
The middle 8 is used twice, lasting 16 measures and 34 seconds each time, totaling 23.69% of the song's duration. The middle 8 modulates from A minor to A major.

[137] "Hey Jude"
The middle 8 is used twice, lasting 11.5 measures and 37.5 seconds each time, totaling 17.5% of the song's duration.

[138] "Mother Nature's Son"
The middle 8 is used twice, lasting 7.5 measures and 21 seconds each time, totaling 25.1% of the song's duration.

[139] "Yer Blues"
The middle 8 is used thrice, lasting 4 measures and averaging about 10 seconds each, totaling 12.1% (29/239) of the song's duration.

[140] "Rocky Raccoon"
The middle 8 is used twice, lasting 8 measures the first time and 9 measures the second (because the second middle 8 concludes the song), averaging 24 seconds each, which totals 22.6% (48/212) of the song's duration.

[141] "Wild Honey Pie"
"Wild Honey Pie" is the 55th Beatles song not to use a middle 8. The novel structure of the song has no need for a middle 8.

[142] "Back in the USSR"
The middle 8 is used twice, lasting 10 measures and 17 seconds each time, totaling 14.7% (24/163) of the song's duration.

[143] "Dear Prudence"
The middle 8 is used once, lasting 5.5 measures and 17 seconds, totaling 7.2% (17/235) of the song's duration.

[144] "Glass Onion"
The middle 8 is used once, lasting 10 measures and 19 seconds, totaling 13.9% (19/137) of the song's duration. This middle 8 concludes with two bars borrowed from the end of verse B.

[145] "I Will"
The middle 8 is used once, lasting 8 measures and 19 seconds, totaling 18.1% (19/105) of the song's duration.

[146] "Birthday"
The middle 8 is used twice, lasting 10 measures and 14 seconds each time, totaling 17.3% (28/162) of the song's duration. The middle 8 modulates form A major to C major.

[147] "Piggies"
The middle 8 is used once, lasting 7 measures and 18 seconds, totaling 14.6% (18/123) of the song's duration.

[148] "Happiness is a Warm Gun"
"Happiness is a Warm Gun" is the 56th Beatles song not to use a middle 8. The novel structure of the song has no need for a middle 8.

[149] "Honey Pie"
The middle 8 is used twice, lasting 8 measures and 13 seconds each time, totaling 16.3% (26/160) of the song's duration.

[150] "Savoy Truffle"
The middle 8 is used twice, lasting 8 measures and averaging 15.5 seconds, totaling 21.1% (31/174) of the song's duration.

[151] "Martha My Dear"
The middle 8 is used twice, with the first iteration incorporating a substantial extension. The first middle 8 (extension included) is 15.5 measures and 42 seconds long; the second is 8.5 measures and 23 seconds long. Combine these two, and the middle 8 totals 43.9% (65/148) of the song's duration.

[152] "Long Long Long"
The middle 8 is used once, lasting 7.5 measures and 26 seconds, totaling 14.1% (26/185) of the song's duration.

[153] "I'm So Tired"
"I'm So Tired" is the 57th Beatles song not to use a middle 8. Instead, the chorus serves as a contrast to the verses.

[154] "The Continuing Story of Bungalow Bill"
"The Continuing Story of Bungalow Bill" is the 58th Beatles song not to use a middle 8. Instead, the chorus serves as a contrast to the verses.

[155] "Why Don't We Do It In The Road"
"Why Don't We Do It In The Road" is the 59th Beatles song not to use a middle 8. (There is no contrast to the verses, with the possible exception of the percussion introduction).

[156] "Julia"
The middle 8 is used once, lasting 5 measures and 18 seconds, totaling 10.2% (18/176) of the song's duration.


Updated cumulative chart:

Despite being rock 'n' rollers, The Beatles were very polite in their lyrics. Of the 213 songs recorded by the Beatles and released on their albums, 25 (12%) use the word "please":

Love Me Do (1962):
"Love, love me do. You know I love you. I'll always be true, so please love me do."

Chains (1963):
"Please believe me when I tell you your lips are sweet"

Please Please Me (1963):
"Please please me like I please you"

I Want to Hold Your Hand (1963):
"Oh please say to me you'll let me be your man, and please say to me you'll let me hold your hand."

Don't Bother Me (1963):
"But till she's here please don't come near, just stay away"

Please Mr. Postman (1963):
"Please Mr. Postman look and see if there's a letter, a letter for me"

You Really Got a Hold on Me (1963):
"I love you and all that I want you to do is just hold me please, hold me squeeze, hold me"

Mr. Moonlight (1963):
"Mr. Moonlight, come again please. Here I am on my knees begging if you please."

If I Fell (1964):
"If I trust in you, oh please, don't run and hide. If I love you too, oh please, don't hurt my pride like her."

When I Get Home (1964):
"Come on, if you please, I got no time for trivialities."

You Can't Do That (1964):
"So please listen to me if you wanna stay mine"

I Don't Want to Spoil the Party (1964):
"If she turns up while I'm gone please let me know."

What You're Doing (1964):
"Please stop your lying, you got me crying girl"

Yes it Is (1965):
"Please don't wear red tonight"

Day Tripper (1965):
"Tried to please her, but she only played one night stand."

Help! (1965):
"Won't you please, please help me?"

I Need You (1965):
"Please come on back to me. I'm lonely as can be. I need you."
"Please remember how I feel about you. I could never really live without you."

Nowhere Man (1965):
"Nowhere man please listen, you don't know what you're missing."

I'm Only Sleeping (1966):
"Please don't wake me, no don't shake me, leave me where I am I'm only sleeping."
"Please don't spoil my day, I'm miles away, and after all I'm only sleeping."

Blue Jay Way (1967):
"Please don't be long, please don't you be very long, please don't be long or I may be asleep."

Martha My Dear (1968):
"Martha my dear, though I spend my days in conversation, please be good to me."

Honey Pie (1968):
"Honey Pie, you are making me crazy, I'm in love but I'm lazy, so won't you please come home."

Come Together (1969):
"He got hair down below his knee, Got to be a joker he just do what he please."

Oh! Darling (1969):
"Oh, darling, please believe me. I'll never do you no harm."

I've Got a Feeling (1969):
"Oh please believe me, I'd hate to miss the train."


P.S.: For those who are wondering, only 2 Beatles songs use "thank you":
Thank You Girl (1963):
"And all I gotta do is thank you girl, thank you girl."

Sgt. Pepper's Lonely Hearts Club Band (1967):
"We'd like to thank you once again."