First, both songs are written in the same key, G minor. This gives them a similar sound and feel.
Second, both songs feature a similar melody. The main difference is that the melody in "Yesterday" is played in a slower tempo than the melody in "All You Need Is Love."
Third, both songs have a similar message. "Yesterday" is about the sadness of losing someone you love, while "All You Need Is Love" is about the power of love to overcome all obstacles.
Finally, both songs were written by the Beatles. This is not surprising, as the Beatles were known for their ability to write songs that were both catchy and meaningful.
In conclusion, the two songs are connected in several ways, including key, melody, message, and writer. This makes them ideal for a comparison and contrast activity.