1) Keep the Bellows closed
2) Shake very little at the top very slowly.
3) Learn to practice shaking for 15 minutes in a row.
He also explain a "triplets" shake.
The bellows pivot in the center cause is 1-2-3 timing.
It sounded incredible the first time heard it.
I explained I wanted to do a bellows shake to him before with the "Little Rascals"
theme song, then he went looking for an accordion that could make this "tremolo"
sound instead.
I think the shake is to be used half way through a song to make the song elevated in
excitement level but it's really hard to do.