wat is polytonality and polyphony?

Question

pls anwer this question because i need this on january 31'2007 Ü pls.. thank u very much!!!

and give examples too

Answer 1

Polyphony is the use of various independent 'voices' or melodic lines at the same time. Usually, the various melodic lines progress together in the same key but they will commonly have different rhythms and contours. So, while they come together to create the harmonic structures of the particular key, each voice has a distinctly melodic function as opposed to simply being there to form chords under a primary melody. Counterpoint is a particular form of polyphony which has particular rules. There are countless examples of polyphony; it pervades Western music. However, Bach is perhaps the most famous exponent: his various keyboard and choral fugues are good examples.

Polytonality is the use of two or more different keys at the same time. There are some earlier examples of this - Mozart's A Musical Joke, for instance - but it is more commonly used (and to more serious effect) in fairly modern music. Stravinsky's The Rite of Spring is one of the more well-known examples.

Answer 2

Main Entry:poly£to£nal£i£ty
Pronunciation:*p*-l*-t*-*na-l*-t*
Function:noun
Date:1923

: the simultaneous use of two or more musical keys
–poly£ton£al \-*t*-n*l\ adjective
–poly£ton£al£ly \-n*l-*\ adverb

Main Entry:po£lyph£o£ny
Pronunciation:p*-*li-f*-n*
Function:noun
Etymology:Greek polyph*nia variety of tones, from polyph*nos having many tones or voices, from poly- + ph*n* voice — more at BAN
Date:circa 1864

: a style of musical composition employing two or more simultaneous but relatively independent melodic lines : COUNTERPOINT

Sorry, can't give any examples.