Started to figure it out last night. After Plant sing's all of the...."did you ever need somebody, and need them bad" part, the next part where Page does a solo (very muti-tracked) are the chords Amaj7, Dmaj7, Gmaj7 and Cmaj7? I think those are the chords, but I'm not really sure. Thanks.
				
			 
	 
 
		 
 
		 
 
		 
 
		