Do you remember when a remix meant almost a completely new song? When Soul Culture presented the question of how and why remixes have changed over the years, Just Blaze explains the need to increase song spins and the limits of computerized radio tracking, specifically Neilsen’s BDS system.
Nobody stops and asks why does the beat stay the same. It’s because if you change the beat, the computers that run BDS won’t pick it up as the same song. So the whole point is to get more spins.