Once upon a time I did some tough stuff in the 8th grade, whereas I was already playing 3rd trumpet in the high school band. That said, I've had a pre-owned copy of Arban's since either 7th or 8th grade, and tossed it because it was falling apart in college and in my comeback purchased a new platinum edition. Still, I am still not personally satisfied with many of the etudes in it, and I'd say if I am not, who else should I expect to be satisfied. Yes, I understand that others expect the full orchestration including harmony and not all the notes of our trumpet solo music studies are favored by others. Simplest put there are not that many songs among the millions that support a trumpet solo, even with accompaniment.