Kodály --- Sonata for solo cello, Op. 8

I'm so fascinated by the music of Zoltán Kodály since I've heard Rohan de Saram playing the cello sonata (Op.8) last week. Precisely, I was fascinated by his play. I have the CD that Yo Yo Ma plays the Kodály, but his play is further emotional, or somehow dazzling, in comparison with Rohan's plain sound of the cello.