The term for a sound that is pleasing to the ear is "euphony." Euphony is often characterized by pleasant, harmonious, and agreeable combinations of sounds, creating a sense of beauty and aesthetic pleasure. This concept is frequently explored in literature, music, and poetry, where the arrangement of words or notes can evoke emotions and create a soothing experience for the listener. In contrast to cacophony, which refers to harsh or jarring sounds, euphony enhances the overall experience of sound. This quality is particularly valued in musical compositions and literary works where sound plays a crucial role in conveying meaning and emotion.