How to practice ordinary accordion without free bass in the left hand?

1. Press the moving plate with your fingers: Press the moving plate with your fingers, and the air can flow through the fixed sound hole, thus emitting a fixed pitch. This method needs to practice accurate finger position and strength to ensure accuracy and stability.

2. Repeated opening and closing: At the same time as the left hand bass sounds, it is necessary to sound the notes corresponding to the right hand. Then turn it on and off repeatedly when moving the flute to keep the bass.