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1)<meta charset="UTF-8">
2)<!DOCTYPE html>
<html lang="ru">
<head>
    <meta charset="UTF-8">
    <title>Музыкальный Стриминг Сервис</title>
</head>
<body>
    <!-- Ваш контент -->
</body>
</html>
3)charset utf-8;
4)LANGUAGE_CODE = 'ru'
DEFAULT_CHARSET = 'utf-8'