What is counter bass on accordion?
It uses columns of buttons arranged in a circle of fifths. A 96-button Stradella bass layout on an accordion. Each diagonal column has, in order from the innermost to outermost buttons: The major third above (or minor sixth below, depending on which note) the root ("counter-bass")
How do I make my accordion louder?
Typically this is done by adding reeds to the middle octave M = 8' reeds although on a few accordions you will find double bassoon options where the L = 16" reeds are doubled. Multiplying the reeds at the same octave will make the instrument louder and fuller.