I had the opportunity to live and work in Nicaragua from 1993 to 1994. I lived between my uncles house/my mother’s birthplace in Ciudad Dario and Granada . So whether I was in a bus, a bar, at a party, or in a market I probably heard this song on a daily basis.
The genre of music is actually called Palo De Mayo (The May Pole) which is a month long May Day festival on the Carribean Coast of Central America. It originated in Bluefields Nicaragua in the 17th century and the celebration includes a maypole, which is a tall wooden pole, which is decorated with several long colored ribbons suspended from the top.
The festival, the music, and the culture of the Atlantic coast of Nicaragua is in itself a potent cross-fertilization of African, Creole, Garifuna, Jamaican/Caribbean, Indigenous, and Latin cultures. The song really sounds like a mixture of traditional African rhythms, soca, paranda and Calypso style music. From what I understand, Grupo Gamma probably made a living playing parties and going door to door playing their music in the month of May. The song Tu lu lu lu pasa (to pass) basically is naming off the people coming, going, passing (be it in life, death, or dance I suppose). There are various versions of the song, always naming someone different and I’ve heard a faster merengue version as well.