Greek art and literature provided the basis of most western art and literature today, as one can observe the Greeks were very enchanted by the human form and truly brought a new degree of realism into their art and sculpture because of it. As for their literature, the Greeks laid a foundation that was then built upon by the Romans, who brought it to Europe, and although it has undergone an immense amount of change over time, it laid a sound foundation for what we have today.
If it's on a house post, I'm sure it's signifying that Yoruba will offer hospitality
It starts slowly, with only a few instruments. Gradually speeds up the tempo, gradually gets louder, adding more instruments....but the same tune is repeated over and over again. The single the,e achieves unity. The tempo and dynamic changes (Loudness, speed) give is the variety.