Most of the songs on “Tall Tall Shadow” (Secret City), the third album by this singer-songwriter from Ontario, unfold like notes to self, even when they’re addressed to a notional “you.” These songs bear titles like “From Now On” and “Promise Not to Think About Love,” and strike a sound that nods to Fleetwood Mac and the early Joni Mitchell. Ms. Bulat has a voice well suited to interiority, warm and honeyed, though it cuts through the reverberant throb of the music.