Yes, all music is sound in time. If you are playing any kind of music that has harmonies then you will benefit from music theory. Academic music theory mostly focuses on the classical repertoire, but every genre has its idioms. Studying theory enables you to hear and identify those idioms and also see where they relate so that you may mix them.
there are entire fields of study deidicated to this
probably the most theory heavy music there is
i dont know what this is
not in the traditional, but if you have spent time studying patterns in music, you will begin see how the patterns in the noise develop and form the overall piece>>31693
any music that exists has a "theory" to it. all theory is, is a collection of ideas about what sounds good. there are definitely alternative theories our there. other cultures, such as that of india or china have longstanding musical traditions with tons of ideas about what sounds good to them.