Here's a tab of "Gonna Leave a Mark" from Crow. The guitar player is playing in drop D. 

I was intrigued by that cool intro riff so I decided to figure out how to play the song.  
This is not a full tab,consider it like a clue to learn how to play the rest.  
I think it's a great song to jam on anyway, so have fun! 

Intro riff: 

E|-----------------| 
B|---6---6---6---6-| 
G|---5---5---5---5-| 
D|-----------------| 
A|3h5-----3h5------| 
D|-----0-------00--| 

Note: If you play with a pick, like me, you'll still have to pick G and B strings with  
fingers (middle and ring) 
and play the rest with your pick 

Verse A: (play softer) 
E|------------------| 
B|---6----6---6---6-| 
G|---5----5---5---5-| 
D|------------------| 
A|3h5------3h5------| 
D|-----0--------0---| 

Verse B: 
E|---------------| 
B|---------------| 
G|---------------| 
D|------5--------| 
A|5-5--(5)3--0-3-| 
D|5-5--x--3--0-3-| 

Bridge: 
E|--------------| 
B|--------------| 
G|--------------| 
D|--------------| 
A|7-7-7-7-------| 
D|7-7-7-7-------| 


Solo Bridge: 

E|--------------------| 
B|---6---6--6---6---6-| 
G|---5---5--5---5---5-| 
D|--------------------| 
A|3h5--------3h5------| 
D|-----00---------00--| 

I recommand using the VLC player eq / spacializer option to turn off the brass, so you  
have more room to improvise !