1.
 Rhythm >It is a pattern of note values,
often set against a steady pulse.
 Pitch> It is the highness and lowness of
sound.
 tempo> It is the speed of pulse in
music.
 Articulation>The way the notes are
attacked and how they decay.

2.
 AB
 ABC
 ABA
 MONOPHONIC > one sounds
 POLYPHONIC > many sounds

3.
 Chordophone> Any musical instrument that
makes sound by way of a vibrating string or
strings stretched between two points.
 Idiophone> Any musical instrument which
creates sound primarily by way of the
instrument's vibrating by itself.
 Aerophone > its is also called string
instruments
 Membranophone