CREATE TABLE table_203_501 (id NUMBER, "title" CLOB, "genre" CLOB, "sub\\u00addivisions" CLOB, "libretto" CLOB, "premiere date" CLOB, "place ,  theatre" CLOB)

which genre is featured the most in this chart ?
SELECT "genre" FROM table_203_501 GROUP BY "genre" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "genre" FROM "table_203_501" GROUP BY "genre" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY