Many songs on A Lo Grande open with a thrilling jolt, whether it’s a joyful brass fanfare or a burst of raw yearning from leader Armando Paul Celis. It’s the perfect way to announce this ostentatious ensemble’s triumphant return. Even when those stirring introductions give way to lush románticas like “Vas a Sufrir,” Banda Los Sebastianes keep up the intensity. But if you listen closely, you’ll discover surprisingly emotional tales of obsession and desire lurking beneath all the instrumental fireworks.