A website
proper sound I don’t know yet very well as we usually work more with software
and sound programs but if a website that many students of my career use is http://teoria.com
this is a website that is destined mainly to the learning of musical
theory.
This have many sections within them we find a section of theory and tutorials in which teaches how to read music, intervals, scales, chords, harmonic functions and musical forms.
Another section that the website has is an
exercises section it is possible to practice by means of auditory mainly
exercises for putting in practice what has been learned in the theory section.
Also have a
reference section where appear musical concepts and finally have an articles
section.

This
website I usually visit when I study for tests of my musical subjects a one day
or two before a test.
This website
I like a lot because in the personal has helped me a lot to understand about
music since before entering the university didn’t know much about musical
theory and I think is a great and funny form to practice and study because is
very didactic.