To learn Armonía 10 - La Duda chords, these are the chords to practise in sequence: E, C#, E, G#, C#m, E, G#, C#, G#m and A. A strategic approach would be to train at 49 BPM initially, and then accelerate to the song's tempo of 99. With an eye on the song's key C# Minor, set the capo that best suits your vocal range.