To jam and learn the simple chords for Coma - System chords, practice playing A, F#, C#m, C#, E, A, C#m, A, C#m and E in sequence. To build a solid grasp, start slowly at 50 BPM and then match the original tempo of 101 BPM. With C# Minor as the song's key, tweak the capo to cater to your vocal pitch and chord likes.