Islam and Muslim is never Universal try to tell them they have the same God as a Hindu or Christian God? Lalon was great Hindu poet but all fine and dandy! He did not have the Baul tune nor did he do Baul Sadhana. There are many types of Sufi, Baul is based on 'Hindu Sufi' not Muslim Sufi and the thing about Baul being Buddhism is that they are not Buddhists as many would say, however, when Buddhists were in trouble they always accepted them into their fold, they already had all the practices from Sanatan Dharma (Hinduism) which is before Buddhism.
The first voice of Baul was recorded was 'Nabani Das Khyapa Baul' the real Baul legend and iconic well known recognized Baul, really you have to do some deep research. Authentic diplomatic people watched him and all commented on the genius he was as most mystic baul they ever seen before... including, Kritimohan Sen, Shantidev Ghosh Nehru, Netaji, Najrul Islam, Annada Shankar Roy and Lila Roy.
Babu Kishan & Lila Roy
American translator 'Lila Roy' who was the first Rabindranath Tagore’s English translator from Bengali, she was a Master of the Bengali language before any other American, she was the first. She married a Bengali and was the wife of famed poet Ananda Shakar Roy. Lily Roy was the first American to be a Scholar on Bengali, she loved Babu Kishan and spent much time with him.
Babu Kishan designed the patchwork (Guduri) dress that now most Bauls wear today for performances, this is 'Baul History' if you wear or wore this dress or your GURU wore this dress, you follow this lineage.
If you sing the songs of this lineage you follow this lineage, if you dress as the women Baul from the film Tagori, Babu Kishan designed that style and dress too, it is the film about his aunt Radharani Dasi.
If you use Ektara Baya and Nagpur around your feet you are following Nabani Das Khyapa Baul (Period).
If you call yourself Das Baul or Dasi you are definitely following this lineage.
If you go where this lineage goes, logic you are following everything this lineage does but the sad part again is you are cutting the history of Baul off and replacing it with your own name?