- July 26, 1952 Recording session – At a morning session at the Castle Studio Bill Monroe recorded A Mighty Pretty Waltz and the instrumental Pike County Breakdown. The musicians playing on both these numbers were Jimmy Martin [guitar], Sonny Osborne [banjo], Ernie Newton [bass] and Charlie Cline [fiddle]. Owen Bradley played piano on A Mighty Pretty Waltz. Paul Cohen was the producer. *
- July 26, 1963 Bill Monroe and the Blue Grass Boys made their debut at the prestigious Newport Folk Festival, Newport, Rhode Island. It was an overwhelming triumph for Bill Monroe who was the headline act on the bill. Recordings from this appearance were released on a Bear Family CD entitled Two Days At Newport. **
- July 26, 1969 Bill Monroe and the Blue Grass Boys played the two-day First Georgia Bluegrass Festival, Shoal Creek Country Music Park, on the shores of Parkertown Creek, Lavonia, Georgia.
* A Mighty Pretty Waltz and Pike County Breakdown were paired on a single (Decca 28356) that was released on August 8, 1952.
The performance included Watermelon Hanging on the Vine, Mule Skinner Blues, Uncle Pen, Devil’s Dream [Instrumental], Molly and Tenbrooks, I Am a Pilgrim and Raw Hide [Instrumental].
Rinzler played bass on Raw Hide.