Related Information for Riff There are at least 3 bands with this name:1. An Argentinian Hard Rock/Heavy Metal Band.2. A Romanian Rock Band;3. An R&B/new jack swing group of the early 90's.1.By the end of the 70s Pappo was in Europe, and there he learned about Heavy Metal, a musical genre still in formation.When he returned to Argentina he decided to play that type of music, but since it wouldn't fit in his solo career (Pappo's Blues), he formed a new band. Cohen, Pappo's Blues' drummer didn.. read more