I've been assigned to give a 15-minute lecture about music concerts next week, I have collected some information from the internet but I don't know how to sort things out.

Please provide me with some advices & acquaintances if you can

What is the context/purpose of this presentation? What exactly are you supposed to talk about?

Just trying to understand the task better so I can share some ideas.

It's basically for the English section, they'll be mostly focusing on the conception, idea linkage, accent, skills, etc..

Buying tickets, the venues, public transpiration to the venues, capacity and safety.

Only 15 minutes? You are gonna have tu summarize a lot of information, but basically talk about tour production, you can talk about the behind the scenes part of it, the part the public don't get to see.