Stella Lefty at Melkweg, Amsterdam

Stella Lefty, the stage name of American singer-songwriter Stella Lefkofsky, performs at Melkweg in Amsterdam. Access to the event works entirely via smartphone, and tickets are found in the Ticketmaster app and the online account. Because the barcode constantly updates, a screenshot or photo of the barcode will not work for entry.

Tickets can be added to a phone's wallet to tap at the entrance. To give tickets to someone else or resell them safely, the official 'transfer' and 'resale' features in a Ticketmaster account should be used so the recipient receives a valid ticket with a new barcode. The time schedule is available at www.melkweg.nl.