1.A pentatonic scale is a musical scale with five notes per octave, in contrast to the heptatonic scale, which has seven notes per octave. Pentatonic scales were developed independently by many ancient civilizations and are still used in various musical styles to this day.
2.In the major scale, there are eight notes going up the steps from bottom to top. These are the eight notes of the octave. On a C scale, the notes from low to high would be C, D, E, F, G, A, B, C. But in a scale, some steps are larger than others.
3.C,B,A,G,F,E,D,C
4.A is a whole step ( whole tone) higher than G.
5.The lower tetrachord of G major is made up of the notes G, A, B, and C. The upper tetrachord is made up of the notes D, E, F#, and G.
