Question

How are the frequencies of notes sa,re,ga,ma,pa,dha,ni related to each other ?

Answer 1

well newland also used this in octive to make periodic tabel

Answer 2

In mathematical terms the frequencies of the notes are in geometric progression.

The seven notes were created with an increasing frequency in the following order:

1. Sa - Sadaj

2. Re - Reshabh

3. Ga - Gandhar

4. Ma - Madhyam

5. Pa - Pancham

6. Dha - Dhaivat

7. Ni - Nishad

After this one more note denoted by Sa is added. Its frequency is double of the first Sa. In this way a set of eight notes is formed - Sa, Re, Ga, Ma, Pa, Dha, Ni, Sa

A set of eight notes is called an Octave. The vocal range of a singer falls within three octaves - Lower Octave, Middle Octave and Upper Octave.