Here is a wonderful video of early Bluegrass and how Don Reno & Earl Scruggs started this magic sound on banjo called Bluegrass. Both Don and Earl really became known via Bill Monroe's influence. Many Bluegrass notables are also mentioned in this great video.
This video is loaded with early Bluegrass history Bluegrass banjo techniques and how they were developed to what we hear today for the most part which is really interesting. The spokesperson speaking in this video is really clear and calm.
I met Don at New River Ranch in Maryland when I was about 12 years old and Don was wonderful to me and patient because I had a ton of questions to ask him--he answered every question. I had just Met Earl and the Foggy Mt. Boys at a Drive In Movie at 11 years old and went crazy about Earl's style of banjo picking. Earl was also really kind to me; an overly energetic little boy who never got over what Earl's banjo playing did to me--I'm still suffering, but with pleasure...HA...
Don Reno Video