bengawan4dGambar 1. Wilayah Sungai Bengawan Solo . Tingginya . curah hujan. di bagian hulu dan. perubahan fungsi lahan di area Wonogiri dan Ponorogo merupakan sebuah sumber air yangBengawan Solo’s Conception. Bengawan Solo was written and first performed by Gesang Martohartono in 1940, just before the Japanese invasion that lasted 3 years from 1942