Short answers, pulled from the story.
John Williams composed the first notes of the Star Wars score in 1977. He went on to compose scores for all nine Skywalker Saga films plus additional themes for Solo: A Star Wars Story and Galaxy's Edge theme parks.
Kevin Kiner began composing for animated series in 2008 with Star Wars: The Clone Wars film. He continued scoring seven seasons of the television show until its conclusion in 2020 before moving on to The Bad Batch starting in 2021.
The Force Theme appears over one hundred times throughout the entire Star Wars series. John Williams introduced approximately seventeen themes per two-hour film across the nine Skywalker Saga movies.
The London Symphony Orchestra performed scores for the first two trilogies with the London Voices chorus providing select passages. The original Star Wars required between 79 and 113 players overall depending on the specific film.
The American Film Institute voted the 1977 Star Wars soundtrack the most memorable film score of all time in 2005 based on assessments from over 500 industry professionals. John Williams won Academy Award for Best Original Score for A New Hope in 1978 while receiving nominations for Empire Strikes Back and Return of the Jedi.