In this lesson, you will see the notes of a Major 3rd lit up on your instrument and you will write them in music notation.
![](/files/tutorials/theory/intervals/04/major_3rd.jpg)
As always, it is important to choose the correct spelling.
![](/files/tutorials/theory/intervals/04/major_3rd.jpg)
The first spelling is correct because E to G# is a third.
The second spelling is incorrect because E to Ab is a fourth.
![](/files/tutorials/theory/intervals/04/major_3rds_spelling.jpg)
Here, the first spelling is correct because Ab to C is a third.
![](/files/tutorials/theory/intervals/04/major_3rds_spelling_2.jpg)
The second spelling is incorrect because G# to C is a fourth.
![](/files/tutorials/theory/intervals/04/major_3rds_spelling_2.jpg)
Now apply what you have learned.
Please press the Exercise button below.