👉 Unwhistled is a concept in the context of music theory and composition, which refers to a piece of music that lacks proper or even basic musical structure. It can be seen as a lack of harmonic progression, lack of melodic progression, or an absence of rhythmic patterns. In classical music, unwhistled pieces are often characterized by their lack of a clear, straightforward melody and rhythm. They may also lack a strong sense of harmony or the ability to create a cohesive sound.