qnli question: What did many Presbyterian churches introduce as a result of modifying prescriptions? sentence: Although there are set services for the "Lord's Day", one can find a service to be evangelical and even revivalist in tone (especially in some conservative denominations), or strongly liturgical, approximating the practices of Lutheranism or Anglicanism (especially where Scottish tradition is esteemed),[clarification needed] or semi-formal, allowing for a balance of hymns, preaching, and congregational participation (favored by probably most American Presbyterians).