If you say that someone is ~, you mean that they cannot sing in tune or recognize different tunes.
ADJ
If you say that someone is ~, you mean that they cannot sing in tune or recognize different tunes.
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012