Which intervals are unique, in that both pitches in those intervals share the same note name? octave
uníson
3rd
7th

Match the instrument with its classification group: trumpet idiophone piano chordophone cowbell membranophone snare drum aerophone

What do you know about the principles of design and the elements of art?

(blank ) is an art that involves performing in front of a live audience to portray a real or imagined event.