Three-chord trick

I → IV → V → I – the simplest complete harmonic cycle using only the three major triads, foundation of rock, folk, and country (e.g. G → C → D → G).

#	Title	Year	Album	Lead Vocal(s)	Notes
1	Please Please Me	1963	Please Please Me	John, Paul	–
2	Misery	1963	Please Please Me	John, Paul	–
3	All My Loving	1963	With The Beatles	Paul	–
4	I Should Have Known Better	1964	A Hard Day's Night	John	–
5	A Hard Day's Night	1964	A Hard Day's Night	John, Paul	as G → C → D → G
6	Every Little Thing	1964	Beatles For Sale	John	–
7	What You're Doing	1964	Beatles For Sale	Paul	–
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8	No Reply	1964	Beatles For Sale	John	–
9	I'm Down	1965	Past Masters	Paul	–
10	I've Just Seen a Face	1965	Help!	Paul	–
11	Tell Me What You See	1965	Help!	John, Paul	–
12	We Can Work It Out	1965	Past Masters	Paul, John	–
13	Rain	1966	Past Masters	John	–
14	Penny Lane	1967	Magical Mystery Tour	Paul	as B → Esus2 → F♯7 → B
15	Sgt. Pepper's Lonely Hearts Club Band (Reprise)	1967	Sgt. Pepper's Lonely Hearts Club Band	Paul, John, George	–
16	Good Morning Good Morning	1967	Sgt. Pepper's Lonely Hearts Club Band	John	–
17	All You Need Is Love	1967	Magical Mystery Tour	John	–
18	Hey Jude	1968	Past Masters	Paul	–
19	I Will	1968	The Beatles (The White Album)	Paul	–
20	Why Don't We Do It in the Road?	1968	The Beatles (The White Album)	Paul	–
21	Don't Pass Me By	1968	The Beatles (The White Album)	Ringo	–
22	All Together Now	1969	Yellow Submarine	Paul, John	–
23	You Never Give Me Your Money	1969	Abbey Road	Paul	as C7 → F → G7 → C7
24	Dig It	1970	Let It Be	John	–
25	One After 909	1970	Let It Be	John, Paul	–

Analysis