Mainstage runs 126 to 132 BPM and masters around -7 LUFS, with a 16 to 48 second intro and a 4 to 6 minute running time. The reference numbers a BeatScore report scores a mainstage record against.
Mainstage sits at 126 to 132 BPM, most often near 128, and a master lands around -7 LUFS with a working range of -9.5 to -5. Every figure below is one the engine scores a record against, read from the same profile your report is measured with.