Can you think, what were the first heavy rock licks of all time?
A Black Sabbath tune, Helter Skelter by the Beatles maybe? Well I am reliably informed it was by an orchestral composer a Mr Edvard Grieg.. 
Lockdown Licks no. 218. “In The Hall Of The Mountain King” by Edvard Grieg. Heavy modern rock version of signature ‘phrases’. Ends with a 3 note power chord, definitely not in the 1875 orchestral version.
Played on a HB35+ guitar set to bridge humbucker into a NUX M8 amp on ‘metal’ setting with some reverb.
“In the Hall of the Mountain King” (Norwegian: I Dovregubbens Hall) is a piece of orchestral music composed by Edvard Grieg in 1875 as incidental music for the sixth scene of act 2 in Henrik Ibsen’s 1867 play Peer Gynt.