Tuning a piano is one of the most important things you can do for your piano. It’s one of the key aspects of owning and maintaining a piano, but very few actually understand what it does and why do it. So why do you need to tune a piano?Tuning a piano doesn’t just involve making it sound nice. In fact, tuning a piano will make it last longer. Over time, strings within the piano can stretch and move, causing the piano to go out of tune. This means that the tension exerted on the frame is not even, as the strings have moved slightly. This is accompanied by the unpleasant sound of an out-of tune piano. Tuning the piano will equalise the combined string tension against the frame and soundboard. This will make the piano last longer and easier to tune in future and preserving the value of the instrument.