Write SQL query to solve given problem: For project titled 'Toot Your Flute!', what is the main subject of the project materials intended for? Name the other projects with the similar focus.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T2.primary_focus_subject FROM essays AS T1 INNER JOIN projects AS T2 ON T1.projectid = T2.projectid WHERE T1.title = 'Toot Your Flute!'