Jars of Clay - Surprise guitar chord

This is off of Good Monsters.

Intro/Verse riff:

Dm Bb F Am7

|-------------|-------------|-------------|-------------|

|-------------|-------------|-------------|-------------|

|-------2-----|-------3-----|-------2-----|-------0-----| x6

|-----3---3---|-----3---3---|-----3---3---|-----2---2---|

|-5-5-------5-|---5-------5-|---3-------3-|---3-------3-|

|-------------|-6-----------|-1-----------|-5-----------|

Pre Chorus:

Bb F C Dm

Bb F C (Hold the C)

Chorus:

Bb F [x3] C

|----1---1---1---1------5---|----------|

|--3---3---3---3---3/6------|----------|

|---------------------------|--5-------|

|---------------------------|--5-------|

|---------------------------|--3-------|

|---------------------------|----------|

Verse 2:

Just play the riff again- Dm Bb F Am7 [x2]

[Pre Chorus]

[Chorus]

Instrumental:

It sounds cool if you tremolo pick this.

Dm Bb F C

|-1/13--12--10-------------------------|

|----------------/13--10--------------|

|--------------------------12--10--9---| x2

|--------------------------------------|

|--------------------------------------|

|--------------------------------------|

Bridge: Eb Bb C [x2]

Pre Chorus: Bb F C Dm

Bb F C (Hold C)

[Chorus]

Everywhere I have an Am7, I believe it is something else. For now,

until I figure out what it is, Im just playing an A power chord.

If someone can figure that out, that would be great.

Enjoy!