Raga Asa was used by Dhanul Laskangadas Guru Nanak, Guru Angad, Guru Amar Das, Guru Ram Das, Guru Arjan and are Kafi and Asavari, both of which have many features in common with Asa.
Raga Asa was used by Guru Nanak, Guru Angad, Guru Amar Das, Guru Ram Das, Guru Arjan and Guru Tegh Bahadur. Its variants as given in the Guru Granth Sahib are Kafi and Asavari, both of which have many features in common with Asa.