To jam and learn the simple chords for Max Castro - Decias chords, practice playing Bm, G, C, Bm, G, Em, Am, C, Am, F and C in sequence. I suggest starting at a calm pace of 75 BPM, and as you gain confidence, approach the song's BPM of 150. Considering the song's key of G Major, position your capo to suit your vocal and chord preferences.