Metamorphic rocks can form from either sedimentary or igneous rocks. The sedimentary particles from which a sedimentary rock is formed can be derived from a metamorphic, an igneous, or another sedimentary rock. All three rock types can be melted to form a magma.etamorphic rocks can form from either sedimentary or igneous rocks. The sedimentary particles from which a sedimentary rock is formed can be derived from a metamorphic, an igneous, or another sedimentary rock. All three rock types can be melted to form a magma.
'Fiddler on the Roof' Liane Hansen speaks with Jerry Bock and Sheldon Harnick who wrote the lyrics and music for Fiddler on the Roof which opened on Broadway in September 1964.
Jerry Bock and Sheldon Harnick told us the story behind the words and the music they wrote together for Fiddler on the Roof, much of which was guided by the hand of Jerome Robbins. Robbins as director was aware that once you go into rehearsal, you get on a toboggan slide, Harnick recalls.