Not sure. I gather DRE probably handled her bookings and tour arrangements and whatever else was associated with that. DRE also produced her 1979 and 1981 tv specials.
Re albums, I think Berry stopped being EP after ROSS. I don't have them in front of me but I don't think THE BOSS and DIANA had EP credits at all. TO LOVE AGAIN was EP by Suzanne dePasse, I believe, and was Diana's first album to include fan club info. Maybe DRE was going to help with that venture as well.
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