Moshezuchter demonstrates how to do a legato bass technique on an accordion which will add drama to your playing. Legato means tying it together. When playing staccato, you touch the keys like they are hot with short strokes to get the punctuated effect. Try playing an alternate base pattern using A, A minor, E to A minor for an oompah sound. Hold your finger on the A while pumping the A minor key. Then, hit the E major key while continuing to hole the A key down. You can also transition to other chords by holding down the A minor key while making the transition. The legato and staccato techniques will give you two different styles of playing the accordion.