You don't know how much your post fascinated me. I felt very identified, as a child I played the flute and percussion instruments for many years. As you say, it is true that when you already know how to play an instrument, it becomes easier to learn another one. The saxophone is BEAUTIFUL, not everyone decides for it, not everyone dares; most prefer the guitar, for example. I congratulate you because it is a challenge and above all do not give up, continue because practice makes perfect. Besides, saxophone music is brilliant. You will see that with a lot of discipline you will be a great saxophonist. Greetings from Venezuela ♥.