Ainda não temos significados para "be an overtone".
1A real killer. There was an overtone of admiration in his voice.
2There was an overtone of contentment within the silent voice.
3When she asked her next question, there was an overtone of fear in her voice.
4There was an overtone which suggested that it made little difference what impressions a captain of cavalry might have gained.
5This freight-car talk is pitched just above the ordinary tone-itis an overtone of conversation, one might say-andit is distinctly nasal.