To start learning I.D.O.4 - Bahala Ka Na chords, centre your learning around these elemetal chords sequence: C#m, A, E, B, C#m, D#m and C#m. I suggest starting at a calm pace of 36 BPM, and as you gain confidence, approach the song's BPM of 73. Considering the song's key of E Major, position your capo to suit your vocal and chord preferences.