Career
He then started working with Chet Atkins playing harmonica with his touring show. Later, he toured with Jerry Reed and Jeannie C. Riley before becoming a very in-demand session musician. In the 1970s, he appeared on many albums including the recordings of Mickey Newbury and Gary Stewart.
Chet Atkins signed Terry as a solo artist for Radio Corporation of America Records in the early 1980s, charting at number 85 on Hot Country Songs with "Love Is a Full Time Thing".
In 1993 he played at President Bill Clinton"s inaugural ball, with David Packs (Ambrosia) All Star Band, giving a solo harmonica performance of "Amazing Grace". He recorded an album for Step One Records in 1993, with Nashville"s Christ Church Choir.
McMillan became one of country music"s most popular session and in demand musicians on harmonica and percussion of all time. After his family"s house was destroyed in a 1992 house fire, McMillan became a devout Christian and focused extensively on inspirational music
In 1993, he released his first album, I"ve Got a Feeling, on Step One Records.
He also released an album for Giant Records, Somebody"s Comin" in 1997. In the years that followed, he became a frequent guest on Christian television programs. He died at the age of 53 under suspicious circumstances and is buried in Smoky Mountain Memory Gardens in Pigeon Forge, Tennessee.