Got another clue when almost getting. Normally I can make it far if I initiate star power after the first set of power notes in the solo, which can let me survive to a second set of power notes, and maybe a third set. Both the second and third power note sets aren't too hard. If I manage to survive long enough to get both strings of power notes, and initiate star power just in time, I might be able to finally clear the song. ...But I'm really getting worn out by the song. Yikes, it's hard.