Aprender a Tocar Guitarra - Inversão
Autor: Hi | Publicado: 2011-09-28T06:57:00-07:00

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Inversão Esta é a parte mais importante da HARMONIA. Refere-se ao tratamento que se deve dar ao acorde, afim de adaptá-lo a uma seqüência. No decorrer da apresentação dos TONS e DISSONÂNCIAS, os acordes foram dados com as TÔNICAS no BAIXO, porém esta condição de uma harmonia perfeita, as vezes não basta, é preciso uma coordenação entre os baixos, e as tônicas nem sempre podem oferecer tal possibilidade. 
A partir de agora vamos começar a utilizar as CIFRAS para dar nome aos acordes.

Vamos construir uma frase.
Logo acima podemos ver o exemplo de um a seqüência de acordes sem alterações, com o baixo em suas respectivas TÔNICAS, porém os seus componentes acham-se isolados entre si, sem qualquer adaptação em conjunto.

Vamos então inverter alguns Baixos  
    




Pode-se verificar que os acordes são exatamente os mesmos, não tendo sido acrescentado nenhuma nota diferente. Apenas foi feita uma INVERSÃO em Am7 (com a SÉTIMA no baixo), e também no Dm ( com a TERÇA no baixo).&nbsp; As outras duas posições se mantiveram intactas, com as respectivas TÔNICAS no Baixo. Como resultado, formou-se um tipo de seqüência harmonicamente organizada, com os acordes funcionando em equipe, devidamente orientados pelos BAIXOS. Esse complexo trabalho de construção e adaptação de frases musicais, pode, na realidade, ser considerado como a base fundamental da própria HARMONIA. 
&nbsp;  Mas não é apenas aplicando INVERSÕES que se consegue uma boa seqüência. Vejamos o seguinte exemplo: 




&nbsp;
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
Como se vê, são acordes com TÔNICA no BAIXO, e dispensam perfeitamente qualquer INVERSÃO. 
Conclusão, para uma boa harmonização, é necessário uma distribuição bem dosada&nbsp; dos acordes com a Tônica no Baixo e com Inversão. É preciso combinar o estilo da&nbsp;&nbsp; harmonia, com o gênero da música, sem o que, até uma boa seqüência poderá ficar&nbsp;&nbsp; Completamente desajustada.

As inversões só podem ser feitas em determinados acordes. Os que mais se adaptam são os seguintes: 

&nbsp; POSIÇÃO FUNDAMENTAL &nbsp; SÉTIMA&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; SÉTIMA MAIOR&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; SEXTA
Mas é preciso saber, em cada um deles, quais os intervalos que tem condições para substituir devidamente a Tônica. Siga abaixo as determinações: 


      Acordes      Intervalos  
      Posição Fundamental       Utilize a TERÇA  
      Sétima       Utilize a TERÇA ou SÉTIMA   
      Sétima Maior       Utilize a TERÇA   
      Sexta       Utilize a TERÇA ou SEXTA  


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