Why does that last phrase sound vaguely pornographic? Sounds like someone is doing something filthy to that divide.
It was like an audaciously & professionally confident three-way between Bacharach/David, Tin Pan Alley, & The Brill Building.
And if you can appreciate the beautifully ironic yin-yang sexuality of the Alley vs Building metaphor not just here but in general, hey, front row seats for you!