The Spirit of Troy, also known as the University of Southern California Trojan Marching Band (TMB), has over 300 members.

Given a variety of instruments ranging from a piccolo (1.5 pounds) to a Tuba (25 pounds)
Estimated instrument weight: 3900 lbs.
Estimated instrumentalist weight: 45,000 lbs.

Estimated Combined Weight (excluding cases and tour busses): 48,900

Conclusion: The TMB weighs more than me.