Nice melodic, simple bass chords in the key of G minor. I hold the chords down and pluck the strings with my index finger only. Let the notes ring out... try to pluck each note without muting the last, until you change chords. (Loop it and it is exactly how the begining of the song goes) It is the begining to one of my originals called Sheer Emptiness. (I already have the end of the song as a lesson)