Do you know the artist that plays on 我愛你?

Do you know the chords that 許冠傑、陳秋霞 plays in 我愛你?

What tempo should you practice 我愛你 by 許冠傑、陳秋霞?

Which chords are part of the key in which 許冠傑、陳秋霞 plays 我愛你?

When did 我愛你 hit the market?