I think Diana Krall was first responsible for my Jazz interest , I won't say she's the best , but her warm sultry voice and smooth rhythmic lines grabbed my attention . My audio system also must take some of the blame for my seduction into Jazz . The rock I was reared on made it hard to focus on detailed improvements . But Jazz music made it easy to hear the blatt of horns , the range of the piano , the texture of strings and the warmth and humanness of vocals .