

When you play a “brass” style instrument (trumpet, tuba, trombone, didgeridoo, vuvuzela, etc) you don’t just blow into it, you press your lips together like for a kiss, and then buzz them. If you do a small, very fast and tight buzz, you get high pitched notes. If you do a looser, flappier buzz, you get low notes. Most people can get about 3 to 5 notes this way, which is why most brass instruments have slides or valves to adjust the airflow and change the note further.
Funny enough for calling this a sax-hybrid, saxophones and other woodwind instruments use a small piece of flat wood called a reed to create the vibrations needed for notes. These mostly only make one note though, which is why sax, flute, clarinet, and so on need so many buttons.
I’m putting my bets on Skyrim Remastered before we see Morrowind or TES6.
Or maybe a skyrim-(or fallout-)based battle royale shooter, i could see that being very likely too.