To learn Oshada Akash, Hashan Thilina, Prasanna Kumara Dammalage, Prasanna Kumara Dammalage, Bathiya Sandaruwan - Poojawak Adare chords, anchor your practice on these foundational sequence of chords - Fm, Bbm, Gb, Ab, Bbm, Fm and Gb. A strategic approach would be to train at 41 BPM initially, and then accelerate to the song's tempo of 82. Set the capo considering your vocal range and favored chords, aligned with the key: Db Major.