Did any band utilize dual guitar harmonies better than Boston did in the 1970s? By playing one riff in one key, and the other in thirds, Boston created a wholly unique and startlingly successful sound in the mid 70s, starting with their self-titled debut album in 1976. The layers of production on the guitars, and the phenomenal harmonized vocals of Brad Delp created a wall of sound that had rock fans clamoring for more. The fact that the band sold over 31 million albums, 17 million copies of their debut album alone, is testament to the enduring quality of the music Boston created. When the classic rock station comes on, who can resist the impulse to crank "Piece of Mind" (one of the greatest guitar songs of all time) or "More Than a Feeling" and air pull out the air guitar? Boston's ingenuity with guitar harmonies, Delp's powerful vocals, and a strong sense of pop/rock songwriting make them another band that could compete for the best rock band of the 1970s.