The engineering team worked around the clock perfecting the single 's mix and making hand - cut vinyl records .
Berry Gordy 's sister Esther in the Artist Development department could critique vinyl records and select the best ones for single release .
The engineering team worked around the clock perfecting the single 's mix and making hand - cut vinyl records so that Berry Gordy 's sister Esther in the Artist Development department could critique them and select the best ones for single release .