Your username is the email address you entered when you registered to TIDAL.
Did you forget your password for logging into TIDAL?
Do not worry. You can receive a new password from HERE
You can also receive it directly in the application by clicking the 'Forgot Password?' button and entering the TIDAL user name you registered your account with.
If you do not receive the password reset email in your inbox, please check your spam or junk folders. Also you can add firstname.lastname@example.org to your email contacts to insure delivery.