for this song you need to tune your A string down so that its 7th fret matches your open string. Mark used a two string bass in this tuning. --------------------------------| -7-7-7--777--4-4-2--2-2-2-------| -7-7-7--777--4-4-2--2-2-2-------| --------------------------------| -------------------------------| ---5--5----5-5-----4-----------| -5---5-5-5--5-5-4---4-4-4------| -------------------------------| somedaay.....