Pierre Boulez.
Pierre Boulez’s only string quartet, Livre pour quatuor, is one of the pieces he struggled the most to complete. He started it in 1948 and only in 2012 did he put a final double line, which wasn’t a real double line because the fourth movement was still missing. Nevertheless, it’s an impressive piece.
Program information:
Pierre Boulez – Livre pour quatuor, performed by Quatuor Parisii
Pierre Boulez – Livre pour cordes, performed by Wiener Philharmoniker conducted by Boulez
Pierre Boulez – Notations, performed by Pierre-Laurent Aimard.