In 1982, Lancaster began pursuit of his dream to spread the Gospel through a cappella music by creating Acappella Ministries in his hometown of Paris, Tennessee. Through this ministry, a quartet was formed, that ultimately became known as the musical group Acappella.
Acappella released its first album in 1984, written and produced by Lancaster, who also sang lead. Acappella released two more albums before Lancaster stepped back from an on-stage role in 1988, to dedicate his time to song writing and production for the group.
In 1986, Lancaster put together the vocal group Acappella Vocal Band (AVB) to augment the ministry of Acappella. By this time, both groups began recording and performing primarily original music, much of which was composed by Lancaster. Each group took a unique focus to spread the appeal of the ministry. Acappella focused on adult contemporary, while AVB was geared towards a more youthful market.
Lancaster continues to produce various projects, work as a worship minister at the Park Plaza Church of Christ in Tulsa, Oklahoma, and be heavily involved with The Acappella Company's leadership, but he has now began to focus on traveling the world and presenting his "Praise & Harmony Workshops" at various congregations, primarily churches of Christ.
Lancaster is married to Sharon, and has four children (Melissa, Kimberly, Anthony, and Allison) who are actively involved in the work of The Acappella Company's vocal bands.