And there is a bee in the room 😂

If I take a 2min Drum and Bass track with 170bpm, add 30s of silence at the beginning and the end it would result in ~113bpm for a track of 3 min. Would this be legal? Or did they also define how to measure the bpm?

Have they defined the planet for the length of the minute? How about a Venus minute? Or a Jupiter minute?