Complex sentence: In 1990, Watkins, working out of his home studio in Virginia, produced the solo album of drummer and friend Coco Roussel, who recorded his tracks in Los Angeles and then uploaded them by computer to Watkins in Virginia.
Split into simpler sentences: In 1990, Watkins, working out of his home studio in Virginia, produced Roussel's solo album. Roussel recorded his tracks in Los Angeles and then uploaded them by computer to Watkins in Virginia.