All kind of models are possible: associate your social ID and prove you've distributed band related content early in their career; associate multiple past purchases - for things like merchandising, fan specials, behind the scenes etc. etc.
The main theme is giving band and labels tools to maintain and curate this relationship with the fanbase, and only then add ticketing on top of it. If you have a certain mass and sign multiple names from the same genre, you can leverage that data to "migrate" say Green Day fans to some new alternative/punk band and offer them discounts, under the assumption this could build strong preferences for that band in the future.
Instead of maximizing present ticket revenue and "burning" a band's current fanbase, you maximize career-wide earnings, fan number and impact. That's a kind of moat that's unbeatable.
