Artist - Kasun Kalhara & Uresha Ravihari
Song - Heenayaki Mata Adare
Movie - Adaraneeya Wassanaya
Key - Am
Beat - 4/4
You can learn how to play C major 7th and F major 7th chords with following diagrams.
If you find it difficult to play major 7th chords you can replace them with their respective major chords without doing much harm to the song.