I have a strong feeling there's not a lot in the vaults since their/her approach to music has always been this constant "record-release" in real time, and this is the second installment, so whatever gets released feels like a blessing at this point. Some of these were probably executed/created strictly to this project, closer to "reimagination" than really "opening the vaults."
I think she really enjoys the Mouth Of A River album, but will save the rest of these to fill the gaps on official albums, ddd.