Wouldnt it be useful to have a library of style parts?
Note that the task is daunting. Styles have 15 sections (4 mains, 4 fills, 3 endings, 3 intro and a break), each of which has 8 parts(2 rhythm, 1 bass, 2 chord, 1 pad , 2 phrase) and, in modern styles there is often two tracks for each part (triggered typically by keying major or minor chords). That is 15X8X2= 240 pattern segments per style to audition, catalog and save. For the 300 styles in Tyros, that is a cool 72,000.