What does the term "semplice" best describe in terms of musical expression?

The term "semplice" in musical expression refers to a character or style that is straightforward and uncomplicated. It suggests a sense of simplicity, aiming for a clear and direct approach rather than ornate or convoluted embellishments. Composers may use this term to indicate that the performer should play with a pure and unadorned sound, emphasizing the music's essential qualities without unnecessary flourishes or complexities. This creates an atmosphere that is sincere and honest, allowing the music to speak for itself. Thus, identifying "semplice" with simplicity aligns perfectly with its intended expression in a musical context.