Naruto Shippuden 246 - Unreleased OST (Kushina's Theme)
This is an unreleased soundtrack from Naruto Shippuden 246. It begins when Kushina uses her chakra to chain the nine (9) tails, and goes right before Kushina remembers her childhood with Minato.
The full version (unreleased) can be found here: • Naruto Shippuden Unreleased OST - Kushina'...
Sorry for this not being clear. I will transcribe it in the future so it'll sound much better!
More unreleased Naruto OST at my channel