i was thinking the same thing for years. The way they sung in the second part of Da Silva before the sebene start is the same like Mbuma Elengi. Bouro once said in an interview with I think Mathy Kasongo back in 2015, that he often inspire himself with old music and appreciate good music. I remember him once singing Recours of Viva La Musica on his facebook. In Calvaire, Bouro used a little part of Reddy's song Arc en Ciel towards the end in his vocal and in the same song took a part of Pierre Mountouari's Missengue.
