On a Bowling Green, Kentucky cattle farm in the post-war 1950s, Bush grew up an only son, and with four sisters. His love of music came immediately, encouraged by his parents’ record collection and, particularly, by his father Charlie, a fiddler, who organized local jams. Charlie envisioned his son someday a staff fiddler at the Grand Ole Opry, but a clear day’s signal from Nashville brought to Bush’s television screen a tow-headed boy named Ricky Skaggs playing mandolin with Flatt and Scruggs, and an epiphany for Bush. At 11, he purchased his first mandolin.
As a teen fiddler Bush was a three-time national champion in the junior division of the National Oldtime Fiddler’s Contest. He recorded an instrumental album, Poor Richard’s Almanac as a high school senior and in the spring of 1970 attended the Fiddlers Convention in Union Grove, NC. There he heard the New Deal String Band, taking notice of their rock-inspired brand of progressive bluegrass.