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Topic: anyone there who is good in theory? i need help of Axis of symmetry problem. (Read 1346 times)

bonjing

PS Silver Member
Jr. Member
Posts: 48

anyone there who is good in theory? i need help of Axis of symmetry problem.

on: October 21, 2009, 04:30:42 PM

On the treble clef, the alto note is A and the soprano is E. Now we have to invert this to a bass clef over the axis of symmetry: B below middle C.

I got wrong on my quiz because I answered F# for the bass and B for the tenor. The correct answer is F# and C#. now how do i get those? any easy method to do this?

thanks

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nolan

PS Silver Member
Jr. Member
Posts: 81

Re: anyone there who is good in theory? i need help of Axis of symmetry problem.

Reply #1 on: October 24, 2009, 01:31:16 AM

With the alto note, the interval between B below middle C and A in the treble clef would be an minor 7th, so just think what would be a minor 7th below the B below middle C? It would be C# in the bass clef.

For the soprano, the interval between B below middle C and E in the treble clef would be an octave and a perfect fourth, so an octave and a perfect fourth below the B below middle C would be an F# in the bass clef.

Make sense?