Frank Zappa - Directly From My Heart To You Bass

This song is called Directly From My Heart and is by Frank Zappa and the Mothers of 

Riff 1:
E---3---------------------|
A---------35--------------|
D--------------3--5--3----|
G-------------------------|

Repeat 4 times then play:

Riff 2
E------------------------|
A---3--------------------|
D----------35------------|
G----------------3--5--3-|

Repeat this 2 times then go back to riff 1 and 2 times, then play

Riff 3
E------------------------|
A---5--------------------|
D----------57------------|
G----------------5--7--5-|

then play riff 1 2 times

This is happens throughout the song