Let's try the L titles for the original Carter family:

Last Move for Me;
Lay My Head Beneath the Rose;
Let the Church Roll On;
Let's Be Lovers Again;
Little Black Train;
Little Darlin' Pal of Mine;
Little Girl (I Ever Cared About);
Little Joe;
Little Log Cabin by the Sea;
Little Log Hut in the Lane;
Little Moses; Little Poplar Log House on the Hill;
Lonesome for You;
Lonesome for You Darling;
Lonesome Homesick Blues;
Lonesome Pine Special;
Lonesome Valley;
Longing for Old Virginia;
Look Away from the Cross;
Look How This World Has Made a Change;
Lord, I'm in Your Care;
Lover's Farewell;
Lover's Lane;
Lover's Return;
Lulu Walls;

Anyone?