👉 Diphthongized is a musical concept that refers to a piece of music where two or more notes are played simultaneously, often in a way that creates a unique and distinct sound. This can be achieved through various techniques such as chord progressions, melody variations, and harmonies. In the context of music theory, diphthongs refer to specific notes that are used in a particular mode of singing, which is known as a "diphthongized" or "phonic"