"Robin Hayward has completely rede_ج¨¬Åned the tuba as sound-producing medium, releasing a sonic potential which ranges between the extremes of_Ç noise and microtonality. Upon _ج¨¬Årst listening, one _ج¨¬Ånds it unimaginable that many of these sounds can be produced on a tuba, but Hayward has dedicated his life not only to empirical experimentation, but also to the academic scienti_ج¨¬Åc study of the acoustics of brass instruments._Ç Rarely has a musician of this caliber immersed himself so deeply in the boundaries of his instrument._Ç The resulting compositions make demands on us: they force us to sense the air pressure in contact with the physical world without framing the sounds in the conventions of contemporary or traditional music._Ç In this sense, Haywards approach is refreshing and revolutionary. In these extraordinary recordings there is no cultural intermediary - it is as if we _ج¨¬Ånd ourselves inside the instrument itself, being pushed back and forth against the walls of a giant membrane or tunnel; left to our own metaphorperceiving natural processes, minimal music, mechanical movement". - Choose.