Again, I presume you mean a wind controller? It's probably wron to think of these as electric saxophones as they are so different, unlike electric/acoustic guitars. An electric guitar is sold as a guitar and a lot of the same technique applies. I think it's a mistake to think of wind controllers (apart from the synthophone) as an electric saxophone, it's bets to treat it for what it is.Is there is difference? Are there electric sax teachers vs traditional?