What is the tempo of a piece described as "Grave"?

The term "Grave" in musical terminology indicates a tempo that is very slow, often characterized by a solemn or serious nature. It suggests a deep, weighty pace that allows for a powerful expression of the music's emotional content. Typically, this tempo creates a sense of gravity, allowing musicians to convey intensity and poignancy in their performance. The other options, while related to slower tempos, do not fully encapsulate the specific and evocative quality that "Grave" implies, which is distinctly slower than merely "slow" or "moderately slow."