The 12 Bar Blues is a chord sequence based on chords I, IV, and V. Complete this chord pattern below:

I I ? ? IV ? I I V ? ? ?

Here is the form in Blues...

T T T T
S S T T
D S T T

Where the T, S, and D refer to Tonic, Subdominate, and Dominate.

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You're welcome! I'm glad I could help. To complete the chord pattern, we can use the information from the 12 Bar Blues form you mentioned. In the form, T refers to the Tonic (I), S refers to the Subdominant (IV), and D refers to the Dominant (V).

Based on this information, the missing chords in the pattern can be filled in as follows:

I I T T IV S I I V D D D

So the completed chord pattern would be:

I I T T IV S I I V D D D

In this pattern, the Tonic (I) is played in the first four bars, the Subdominant (IV) is played in the fifth and sixth bars, and the Dominant (V) is played in the seventh, eighth, and ninth bars.