Left hand thumb placement & Why the traditional capo is obsolete https://youtu.be/KU1PW4wkXaI?t=14s

About the use of the Capo "Cejilla" https://youtu.be/JC4kMKyWsp0?t=24s

Capo link http://www.stringsbymail.com/store/jim-dunlop-advanced-toggle-action-classical-guitar-capo-11f-d-5723.html

Just need 2 things to learn https://youtu.be/1As8_P1JyF8?t=14s

Ex.1/ 00:14 solo 1
Ex.2/ 03:43 solo 2
Ex.3/ 04:38 topic

........

Tuning with the capo on
https://youtu.be/DxHNZa2dtVc?t=14s