 In July 1954, Sam Phillips produced the first of five 78s and 45s that Elvis Presley would release on Sun over the next year and a half, all of which featured a novel production technique that Phillips termed "slapback echo" .Rob Bowman.
<fluency>  In July 1954, Sam Phillips produced the first of five 78s and 45s that Elvis Presley would release on Sun over the next year and a half, all of which featured a novel production technique that Phillips termed "slapback echo" .Rob Bowman.
 In July 1954, Sam Phillips produced the first of five 78s and 45s that Elvis Presley would release on Sun over the next year and a half, all of which featured a novel production technique that Phillips termed slapback echo .Rob Bowman.