No, 4ths and 5ths are resonant. They sound better to a lot of people. They are completely distinguishable from arbitrary intervals right near there. Most of th

No, 4ths and 5ths are resonant. They sound better to a lot of people. They are completely distinguishable from arbitrary intervals right near there. Most of the notes on the Western scale fall into this orientation, i.e. there is reasoning for it. It's not just arbitrary.