Raoul Armand Jerzy Koczalski was a Polish pianist and composer. He also used the pseudonym Georg Armand Koczalski.

Karol Mikuli, also known as Charles Mikuli, was a Polish pianist, composer, conductor and teacher. His students included Moriz Rosenthal, Raoul Koczalski, Aleksander Michałowski, Ciprian Porumbescu, J