Saxophone Effects Bb (Texas) Wobble

The Bb Wobble aka Texas Skake

This is quite simple, basically you finger an Eb but without the LH 3 G key:

Bb Wobble

You then need to blow quite hard with an exaggerated vibrato so that the note alternates between G and Bb with a yodelling effect. It should sound a bit like this:

Tenor
Alto

Mr Lucky