it was COLOGNE SALSA CONGRESS 7.-9. JUNE 2019. organizers: Sebastian Bibrach & Mehdi Harris www.colognesalsacongress.com next edition 5th-7th of June 2020
It is a Cuban classic close 100 years old. There are countless renditions, by all the greats and everyone else. Bebo&Cilagalas' being a notable one for me. A phase of my life was consumed by this song. The melody and rhythm are great but the lyrics are eternal!
Here you go bro! Its not titled Lagrimas negras and thats why its hard to find.. Flores Negras-Ray Perez ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-I4lmsg_dusQ.html