When and where did Seiji Ozawa direct Orff's Poems of Bran?

Bran's poetry collection is a mysterious manuscript of 13 century, which has been hidden in Bavarian monasteries for centuries. When the 20th century German composer carl orff (1895- 1982) first read this collection of poems, he was immediately shocked and attracted by its touching power, which immediately gave him the idea of creating a musical work with these poems. During the period of 1935- 1936, he carefully selected 25 poems with the most secular feelings from this mysterious manuscript, and arranged these poems into three parts, namely, the first part praises nature, the second part praises wild life, the third part praises love, the palace of love, plus

The first part is light and bright, which means that the distance is far away. The male and female voices of the chorus alternate like day and night changes in time series. The second part is the secular scene. The use of falsetto and tone sandhi by actors in singing is like describing the world of a person living in a masked party scene, but strangely, the jubilant scene seems to be as cold as a passing ghost. The third part has the catharsis of longing for love, the ode to love sadness and the simple singing of lust.

Bran's poems are full of amazing elements and drama. Full of majestic shouts and euphemistic hymns, it makes a surging sound like a raging torrent crashing on a rock, and it is like a gurgling stream winding to a soft grass beach. Band and singing complement each other; Shock percussion music is like the call of fate, which has a strong soul-knocking effect. Bran's poems are hymns of life, including wine songs, solemn love poems and indulgent love songs, religious poems and pastoral lyrics, and satirical poems directed at the church and the government.