1973 was a very good year, what was to become the definition of classic rock was released that year on vinyl.A perfect example of that definition would be albums like 'Houses of The Holy', 'Band on the Run' and 'Dark Side of the Moon.' Practically every sub-genre of classic rock was covered in 1973 from debut albums to the likes of Aerosmith, Montrose to The Marshall Tucker Band.

The 40th anniversary of classic rock albums is massive, however; I have 40 picked out for you in this 4 part series that I feel have great back stories and are historically and musically significant.

I will have them listed alphabetically by album title:

40 isn't so bad when one considers the average life span today, 40 is fairly young.

Happy 40th anniversary as we revisit 1973 with some great classic rock.