Sir's Guitar Classes on Instagram: "G Major 3 Octave" refers to the G major musical scale played over a range of three octaves, meaning it encompasses three full sets of the eight notes (G, A, B, C, D, E, F#, G) that form the scale, starting on a low G and extending upwards. #guitartutorial #guitarlessons #sirguitar #sirsguitar #beginner guitarvideo #guitarlessonsforbeginners #guitarscales #guitarbasics #guitarhacks #guitarfacts"