Maman is french for mother, I'm not really sure if this is what Tamaki calls her in the series, but whatever...
Disclaimer: Ouran doesn't belong to me...yet...
Tamaki
Tamaki was a musical genius. He loved his piano, before, with Maman, it was his life. With music, there was no need for lying words, because with music, there was only truth. When he came to Japan, the music died. His music died. All he heard was fake, mechanical melodies, unlike he met Kyouya. He could tell, under that mechanical music, there was a spark in Kyouya. When that spark broke through that lifeless music, Tamaki could feel his own music come back to life with it. He continued looking for these "sparks," and soon, his life was music again.