Bass Chord Chart and Tabs in Standard Tuning

Am2, Amadd2, Amadd9
Notes: A, C, E, H
5,2,2,5 (2113)
5,3,2,4 (4213)
5,7,9,5 (1231)
8,0,9,9 (1.23)
7,0,10,9 (1.32)