BEGINNING: SCOTT ENGEL SESSIONSBefore he racked up pop hits with the Walker Brothers and garnered a cult following with his adventurous solo work, Scott Walker had a brief run as a teen singer under his given name, Scott Engel. HUMBLE BEGINNINGS documents this little known early era of Walker's career, offering up sugarcoated late 1950s early '60s singles such as "All I Do Is Dream of You" and "Sing Boy Sing," which hint at the Ohio born performer's flair for the dramatic and his