You are not going to be able to choose what you are going to get. the music will be very randomly chosen so you won't really know by now what you are going to get. The music can be random on a level from German folk to Japanese metal or something really different like Youtuber-songs, remixes etc.
The only thing you can decide is how many artists you are going to get. If you don't say how many artists you want I decide on how many artists I send you