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ALTER TABLE projects ADD COLUMN genre_id INT, ADD FOREIGN KEY (genre_id) REFERENCES genres(id);

ALTER TABLE submissions_musician ADD COLUMN genre_id INT, ADD FOREIGN KEY (genre_id) REFERENCES genres(id);

ALTER TABLE projects ADD COLUMN user_id INT, ADD FOREIGN KEY (user_id) REFERENCES users(id);

ALTER TABLE submissions_musician ADD COLUMN user_id INT, ADD FOREIGN KEY (user_id) REFERENCES users(id);