To jam and learn the simple chords for Alvan - Magma chords, practice playing Gm, Bb, F, G, Dm, G and Dm in sequence. A good strategy is to initiate at 67 BPM and then accelerate to the track's regular speed of 135 BPM. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: D Minor.