To learn Fossils, Rupam Islam, Rupam Islam, Fossils, Fossils, Fossils And Miti Adhikari - Hridoy Bhangbar Gaan chords, begin by getting comfortable with these sequence: D, G, D, Bbm, F, D, Bb and G. A strategic approach would be to train at 68 BPM initially, and then accelerate to the song's tempo of 137. With D Minor as the song's key, tweak the capo to cater to your vocal pitch and chord likes.