Let's start jamming Sia - Unstoppable chords, Practice these chords sequence - C#m, D, A, C#m, C#, F#m, D, C#m and F#m. To build a solid grasp, start slowly at 43 BPM and then match the original tempo of 87 BPM. Adapt the capo setting considering your vocal range, with reference to the key: A Major.