Which Role has a Theatre of globe, and a Music of jerome kern?
CREATE TABLE "1921_1930" (
  "title" text,
  "date" text,
  "theatre" text,
  "role" text,
  "dance_partner" text,
  "director" text,
  "lyrics" text,
  "music" text
);
SELECT "role" FROM "1921_1930" WHERE "theatre"='globe' AND "music"='jerome kern';