Seybold Piano-Accordeon-Jazz Orchestrion - Over the Waves (Sobre las olas)

The 'Piano-Accordion-Jazz' created by Seybold in Strasbourg around the late 1920s. It was the most popular model by the company, however the style you see here is the rarest of them all. Most models have the drums and the accordion side-by-side on the piano instead of stacked upwards.

[@masklavier]

Whats all the stuff in the center of the roll controlling? I don't hear any notes following it so is it some sort of expression?

[@retr0la]

That is the expression for the accordion!