From Dr Geoff Lindsey.

The Chicago accent of Pope Leo XIV helps us explore a famous ‘chain shift’, the Northern Cities Vowel Shift!

Take our survey on North American pronunciation: https://script.google.com/macros/s/AKfycbyNdVal-lokHtFQk5Ja6-ALFrYyBnO47JUySqh3AzlKtsU4HEsR7NnCK1dyR0iKriZiog/exec
Huge thanks to Hernán Ruiz for help with the survey stats and figures.

My Discord: https://discord.gg/Fm3pgz3N

0:00 Introduction
0:43 The Inland North
0:56 Chain shifts and the NCVS
3:02 The TRAP vowel
3:40 The LOT vowel
4:03 Push chains and drag chains
6:15 The THOUGHT vowel
6:28 The cot-caught merger
8:22 The words ‘on’ and ‘Chicago’
9:30 The DRESS vowel
11:22 The KIT vowel
12:13 The STRUT vowel
14:33 The PRICE and MOUTH vowels
15:27 The GOAT and GOOSE vowels

Thumbnails:
https://commons.wikimedia.org/wiki/File:Pope_Leo_XIV.png author Edgar Beltrán
https://commons.wikimedia.org/wiki/File:Chicago-Style_Stuffed_Pizza.jpg author Олександр Дячук
Both: Creative Commons Attribution-Share Alike 4.0 International license