in sx900 there is no audio styles in preset audio style space they used for other purpose, i used psr s 975 in 975 there is preset audio styles, that we cant find any one of audio style file in sx900,, if we need audio style we have to create it in audio phracer or download from Yamaha style it ppf file have to use yep to prepare pack along with other packs then only we can use audio style, so please any one if any idea about audio styles, please inform us to better user performance..