Define the following terms about music before 1900.?

Question

My son is taking Music History this semester and I really want to help him. I just finished by taking Music Rudiments (RCM Canada Grade 2 Rudiments), but Music History is Grade 3 level. Please help me by defining the following terms.

1. Sonatina
2. Sonata
3. Classical Period
4. 3-part harmony
5. Parralel Fifth
Also please try to write about the structure of a sonatina in Definition number 1.

I really appriciate your help.

Answer 1

So I'm not sure how in depth he needs it.
Sonatina
http://education.yahoo.com/reference/dictionary/entry/sonatina
and
http://www.britannica.com/eb/article-9068682/sonatina
Sonata
http://www.britannica.com/eb/article-9110135/sonata
Classical Period
http://classicalmusic.about.com/od/classicalperiod/Classical_Period_Music_from_1750_to_1820.htm
3- part Harmony
http://www.newadvent.org/cathen/07139a.htm
Parallel Fifth
I believe that is just when you add another note a fifth above a note.

Answer 2

BAR: music is split up into sections stated as bars. they are divided in accordance to the time signature that the piece is in. occasion: the piece is 4/4 time, so each bar would desire to have 4 beats in it (4/4 ability 4 beats in line with bar) BARLINE: the tip of the set of bars group: the 5 lines which the notes are on. 5 CLEF: ???? TREBLE CLEF: a logo on the commencing up of the staff this ability which you're above center c. BASS CLEF: a logo on the commencing up of the staff this ability which you're below center c.