Why can't musicians come out with their own music?

well, the idea used to be to play what sells, all while trying to have their own style. Jimi Hendrix at first had all covers but with his own style, Led Zeppelin must have done a quadrillion covers, so did many others.. also it is very difficult to get signed up when your music isn't the same old formula that's proven to sell, see what happened to the beatles when they tried to get signed up themselves. Anyway, I have tons of music that is different from the rest, of course these artists aren't easy to find but they are all out there, it isn't their fault if people want all the same music..