I spent a lot of time on this tutorial today. I don't know much about jazz yet. In your videos, you show us all the chords you use. But I need to dive a little deeper to really understand why, for example, an Ab9(b13) makes sense. I would like to take this opportunity to warmly recommend your accompanying data in the downloads. Your PDF with the chords is already helpful here. However, your Guitar Pro file in combination with the first-class backing track is amazing! I just added your MP3 to Guitar Pro 8 as an audio track. Both fit together perfectly right away. You are simply a pro. And not just on the instruments. Now I can slowly increase the tempo while practicing. The notes and backing track fit together perfectly at all times. Thank you for your first-class support. I can only recommend everyone to take advantage of these opportunities with the premium membership. Thanks Hanspeter 👍