"All You Need is Love" by The Beatles. This was the UK's contribution to "Our World", the first live, international, satellite television production, broadcast on June 25, 1967 to 400 million people around the world. The "friends" gathered around The Beatles in this video are members of The Rolling Stones, Eric Clapton, Marianne Faithfull, Keith Moon and Graham Nash.
The Beatles- I Need You. 1965. George Harrison composer. George Martin engineer. It's important because it's the first use of wah wah pedal by a major artist. It also introduces the rest of the composition beautifully. This intro is 4 notes.