Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
natzar - Spotify's upcoming concerts plus tickets, flights & Airbnb
Facebook Local - Discover places to go and events happening near you
Music Plug - Music news & concert tickets
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.