Depending on your goal, a "solid piece" usually refers to one of the following:
: If you need a background track, tools like VEED.io can help you upload your MP4 and layer in a music track. VID_20230125_185955_923mp4
To help you find a "solid piece" for your video file , I need a little more context on what you are looking for. Depending on your goal, a "solid piece" usually