Chat with our AI personalities
a chord lets people play three or more notes in a note
I believe that is called a chord. Yes, a chord is the straight line segment that crosses a circle, from one side of the circle to the other. The biggest possible chord is the diameter. The curved part of the circle, cut off by the chord [or chords], is the arc or the angle.
Assume you mean the chord of a circle? If the angle between the two radii from the ends of the chord is A, and the radius of the circle is R, the chord length L will be L = 2RsinA/2. You can prove this easily by joining the point bisecting the chord to the centre, you then have two rightangled triangles, with an included angle of A/2, and an opposite side of L/2. So sinA/2 = L/2R.
The longest chord of a circle is its diameter
There is actually no such thing as a "dominant scale", however you can use the notes of a dominant 7th chord as a scale and that can begin on any note, the dominant 7th chord in C major is G7 and G7 uses all white keys (G, B, D and F), the structure of a dominant 7th chord is the major triad plus the flatted 7th.