以下為音樂字典中的標準解釋
The precise meaning of tenuto is contextual: it can mean either hold the note in question its full length (or longer, with slight rubato), or play the note slightly louder. In other words, the tenuto
mark may alter either the dynamic or the duration of a note. Either
way, the marking indicates that a note should receive emphasis
標示tenuto的根據不同情況可能是稍作強調，或者保持音符的完整時值或者更長。這裏的強調不壹定是特指加強音量，是給予特殊的註意（比如讓其聽起來凸顯出來等）
壹般情況下（包括給出的圖片）都可以理解為保持完整時值，稍作強調的意思