22. Jaties

As I mentioned earlier, There are three main Jaties of Indian Raags:

Heptatonic or Sampooran or all seven notes
Hexatonic or Chhadav or 6 notes
Pentatonic or Audav or 5 notes

9 subcategories or Jaties are created by pairing the above three to make ascending and descending (aroh/avroh) pairs.
Let’s explore these Jaties before proceeding any further. Let’s see how many alterations of a scale are possible in each Jati and how.
1. Sampooran: A sampooran scale uses all notes. So there is only one type of Sampooran scale in each Thaat. A sampooran scale looks like this in Bilable Thaat (natural scale):

2. Chhadav: Chhadav or hexatonic scales are made by omitting one note from the Suptak (octave). A Suptak has seven notes. Sa or the keynote cannot be omitted. So there are six Chhadav scales in each thaat.

1.	2.
3.	4.
5.	6.

3. Audav: An Audav scale uses five out of seven notes. Study the following images to find a pattern. The notes (2nd through 7th) are omitted in the following order:
2-3, 2-4, 2-5, 2-6, 2-7, 3-4, 3-5, 3-6, 3-7, 4-5, 4-6, 4-7, 5-6, 5-7, 6-7
Once you understand the pattern, it is very easy. There are 15 Audav scales in any Thaat. Here are the 15 Audav or pentatonic scales in the natural scale:

1.	2.
3.	4.
5.	6.
7.	8.
9.	10.
11.	12
13.	14.
15.

Go over these images until it makes perfect sense. Next we will pair them to create Sub-categories.