“… In a word: everything was fantastic. Some days ago we commented the lack of enthusiasm of the National Orchestra playing Francisco Guerrero. This night, here, at the Reina Sofia, was the exact opposite. Enthusiasm, passion, absolute dedication to the interpreted music… Unfortunately forgotten by the great chamber and symphonic music repertoire, saxophone is one of the most ductile instruments there is. This night, we have appreciated that at the solid, obsessive textures of “Akaitz”, by Felix Ibarrondo: a work of impressive strength and formal clarity, which initiated the concert; and even more (maybe) at Cristobal Halffter’s “Fractal”, a most beautiful work, performed by the original quartet, in which many rough passages interact with delicate textures without vibrato: the cruel and Medusa-like beauty of dissonances with episodes of serene beauty, we don’t know if convoluted. Sigma Project is capable of the most magic sonorities. Their textures are always clear, even at tense and aggressive moments.”