Sadao Watanabe is a Japanese jazz musician who plays alto saxophone and sopranino saxophone. He is known for his bossa nova recordings, although his work encompasses many styles, with collaborations from musicians all over the world.

Utsunomiya is the capital and largest city of Tochigi Prefecture in the northern Kantō region of Japan. As of 1 July 2023, the city had an estimated population of 513,584, and a population density of 1,232 persons per square kilometre (3,190/sq mi). The total area of the city is 416.85 km2 (160.95 sq mi). Utsunomiya is famous for its gyoza. There are more than two hundred gyoza restaurants in Utsunomiya.