To jam and learn Nirvana - (Demo) Aneurysm chords, your primary focus should be mastering these chords sequence: Bm, A, F#, C, D, B, D, C and B. For a smooth transition, initiate your practice at 70 BPM and gradually match the song's pace of 142 BPM. Adapt the capo setting considering your vocal range, with reference to the key: D Major.