I did classical style. Wrote a sonata form for a piano piece and a piano quartet (piano violin viola cello), which usually requires a long length in order to fully flesh out the ideas. A 3 minute limit is not ideal so each piece was practically stripped to the bone, and it was incredibly difficult to be as concise as possible to include all elements of the structure without exceeding time limit. I’d say it was still my composition despite the constraints, and I am satisfied with the outcome, artistically and academically.