A number of years ago we had a video that discussed Breath In Music and if you want to get a general overview of the subject you may enjoy watching that video. Recently, someone requested that I produce a video that gives a demonstration of this concept. There are benefits from the visual aspect. So, I suggest you watch the accompanying video.
When it comes to singing, the breath in music is obvious; after all, you have to breathe in order to sing! Wind instruments are a natural extension of singing and utilize the breath in much the same way. The bow of the violin or cello also mimics the continuity of breath in music. When it comes to the piano, while breathing isn’t a part of the technique for tone production, it is intrinsic to the music as much as it is with singing.
In the video you can see how adding a sense of breath can enhance the music and bring it life. Without the sense of the breath, you lose the human element that makes listening to and playing the piano enriching, not just a mechanical endeavor.
All instruments are basically a representation of the human voice and adding this to your music is something that is essential in making it lively and exciting. I hope this was helpful and if you have any questions about this topic or any other, please email me Robert@LivingPianos.com for more information.