Who would be the audience for your media product?

The ideal audience for my magazine would be 20s onwards, but unfortunately it will more likely be late 30s early 40s and onwards. This is due to the fact that Jazz is quite an old Genre, starting in the very early 1900s. The mainstream popularity of Jazz was from the 1920s to the 1960s, but the popularity in Jazz started to decline. However research has showed that interest has started to grow.