I was not familiar with Chiesa's work, but in the same Creative Sources batch there's an improvised performance where he plays with Jean-Luc Guionnet (here offering his drawings for the layout), Eric La Casa and Emmanuel Petit, which I'll review anytime soon. "Phonèmes" features two improvised studio sessions recorded last november, where Chiesa explores the possibilities of double bass, his instrument of choice. I am always a bit skeptical when it comes to solo improvised recordings, but this French musician manages to pour both the free-flowing qualities of radical improv and a great sense of timing and discipline. "Phonèmes" is indeed an appropriate title, as Chiesa is apparently stripping the sound qualities of his instrument to their very physical components - from intense bowing to sparse thumps. It's obviously not an easy listening record, but there's an underlying, compressed strength to it that makes the experience a rewarding one.