The Modern Sound Quintet were formed in Stockholm by Trinidadian steel drum master Rudy Smith. On Otinku, Smith wails out on his set of 'pans' (as I believe the vernacular goes) in an improbably slick bebop mode, accompanied by a rhythm section capable of keeping it free and swinging one moment, and then within an instant locking down a groove. While pieces like the title track and 'Bye Bye Blackbird' flow effortlessly, 'Mercy, Mercy, Mercy' and 'Memphis Underground' lay down a solid bedrock of …