To learn Deva Premal - Namaste chords, your first step should be understanding these chords - B, C#m, A, E, C#m, E and A in sequence. A strategic approach would be to train at 57 BPM initially, and then accelerate to the song's tempo of 114. Given the song's key of C# Minor, adjust the capo to align with your vocal range and chord preference.
