To start learning 2Th - Déçu chords, delve into these chords sequence to get the song's feel: Bb, Gb, Ab, Fm, Bb, Eb, Ab, F and Bb. I suggest starting at a calm pace of 44 BPM, and as you gain confidence, approach the song's BPM of 88. Adjust the capo based on your vocal range and chord preference, keeping the song's key of Db Major in mind.