Original sentence: Robert Gregg Koester (October 30, 1932 - died May 12, 2021) was the American founder and owner of Delmark Records, a jazz and blues independent record label
Edited sentence: Robert Gregg Koester (born October 30, 1932 - died May 12, 2021) was the American founder and owner of Delmark Records, the oldest jazz and blues independent record label in the United States and one of jazz's best-known imprints