Stevie? "When Will We Love Again?" Is It She?

[cbBen]

Could anyone please shed light on this recording?: https://www.youtube.com/watch?v=uFfNIA_v0BY

1. Whether this is Stevie?
2. If so, whether she or Lindsey is playing the guitar?
3. When it was recorded?
4. Whether it was recorded in public or at someone's home (there's pool in the background, but that could happen either way)?

If the answer to #1 is "no" then #2 is moot and #3-4 are no longer of interest.