Dear [Friend's Name], I hope this letter finds you well. I am writing to invite you to join the music club at our school. The club meets every Friday afternoon from 3:00 pm to 5:00 pm in the school auditorium. We have a diverse range of music genres, including classical, jazz, pop, and rock. Music has been incredibly useful to me as it helps me relax, express my emotions, and develop my creativity. I believe you would enjoy being part of the club and exploring the world of music with us. Looking forward to seeing you there! Best regards, [Your Name]