The biggest danger is sonic mud. With six hands, you have 60 fingers hitting keys. If everyone plays fortissimo, the result is a wall of noise. Great 6-hand pianists learn to listen vertically. The bass player must play mf (mezzo-forte) so the melody can sing. The middle pianist often plays p (piano) with soft pedaling.
Tango relies on erosión (erosion)—a sense of tension and release, of rhythmic friction. Three pianists can play slightly off each other’s beats (a technique called microrritmo ), creating a raw, ensemble feel impossible to achieve alone. The 6-hand arrangement doesn’t just add volume; it adds texture . libertango piano 6 hands