Lou Donaldson and the Three Sounds both had a tendency to slip into low-key grooves, which is what makes the hard-driving bop of the opener "Three Little Words" a little startling. Donaldson is at a fiery peak, spinning out Bird-influenced licks that nevertheless illustrate that he's developed a more rounded, individual style of his own. The Three Sounds are equally as impressive, working bop rhythms with a dexterity that their first albums only hinted at. That high standard is maintained throughout the album, one of the finest in either of their catalogs…