One of the first albums I owned was 4 Way Street, the live double album by Crosby, Stills, Nash & Young. I purchased the album on recommendation of some older friends because they told me it ought to be a must have. It was pure West Coast sound from the early 1970's but I learned to love it because of the voices were singing in perfect harmony and it led me towards to Neil Young and the way he played his guitar. Even if this record is almost 50 years old it sounds fresh to me.
CSN&Y - Carry On