main riff
|-----------------|
|---5---5-----5-5-|
|-7---7---7-7-----|
|-----------------|

"i feel alright" part (i think)
|-------|
|-------|
|-7-5-5-|
|-------|

variation of the main riff
|-----------------|
|-------------5-5-|
|-7-7-7-7-7-7-----|
|-----------------|

send any questions, comments, critism or death threats to 
*...  or don't.  the choice is yours!