The context is starting on a Bsus2,4 feeling like 1min and moving the bass note down a whole step. It really feels like there should be another way to notate, because it's really a b7 chord with added 2 and 6, and purposefully no 4 and 7. So Aadd2,6? Or F#7sus/A?
A6(9), or if you want to make sure no one tries to play the 9 up high, then you can say A6(add2)