The modern guitar is a direct descendent of this particular Spanish instrument

Printing requires the use of equipment which is known as a(n) __________

Fill in the blank(s) with correct word

What two innovations mark European music during the 15th century?

A) ?the perfection of organ-playing and the elaboration of Gregorian Chant B) ?the development of musical notation and the invention of the harpsichord C) ?the invention of the trombone and trumpet D) ?the secularization of the motet and the use of folk tunes in sacred music