Third episode. Still no OP. Still no music. (- -__|||)
We get a whole episode of Yui procrastinating and the entire club holding an all-night cram session for her.
Yui passes, of course, and we've just seen an episode devoted to characterizing our protagonists with no real plot development. In the end Yui even forgets all the chords she learned so we are no closer to a show about a band than we started.