I acknowledge that this format is unbelievable unpopular on my channel and it's a jazz tune, which means nobody is interested in this either, but I am interested and that's all that matters. I think Penthouse Prelude is a great etude on jazz soloing mechanics, it can teach you a lot about jazz harmony, connecting chords, use of chromatics. All in one minute! Try to play it in the original tempo and you'll come to find it's not as easy as it may seem. In fact, it's very difficult! Pavel.