Musical harmony refers to when different musical sounds are played or sung together and they sound pleasing and balanced. It is like all the different tones and voices coming together in a way that sounds good and feels right. Full definition
Together, they seem to create an audible musical harmony (a reference not lost on the artist, whose work was often compared to blank sheet music paper). (imagejournal.org)
Ultimate Ears» Boom Bluetoothe speakers can now come together in musical harmony in great numbers. (techtimes.com)
That unmistakable sensation of musical harmony depends on the frequencies of the sound waves that make the two notes. (sciencemag.org)