Question: Daniel W. "Danny" Flowers is best known for his own songs that have been hits for other musicians including an rock and blues guitarist who is the only three-time inductee to what?
Sentence (from "Danny Flowers"): These included "Tulsa Time" for Don Williams and Eric Clapton; "Back in My Younger Days" for Don Williams; "Gulf Coast Highway" for Emmylou Harris, Willie Nelson, and Nanci Griffith (co-written with Griffith and James Hooker); and "Before Believing" from Harris' "Pieces of the Sky".
Relevant evidence: Yes