Although no signed paintings by Rogier van der Weyden exist, art historians use a painting of the ___________________to establish the characteristics of his art

An Austrian zither that has melody strings over a fretted fingerboard is a(n)__________

Fill in the blank(s) with the appropriate word(s).

________ is a musical style made popular through Elvis Presley's early recordings at Sun Records in 1954-55.

Fill in the blank(s) with the appropriate word(s).