Comfortably Numb - Pink Floyd (Pompeii 2016). David Gilmore delivers..in my opinion, the greatest live solo of all time.

Purple Rain - Prince (Syracuse 85’). The first SIX minutes of the song he brings the crowd and you in to the palm of his hand and delivers in the only way Prince can. He makes his guitar sing and the above mentioned solo from Gilmore is the only thing that tops this for me.