Harp. Acoustic bass. Classical voice. Jaggery, one of this week’s Foundwaves Weekly Picks, seamlessly join all three together with acoustic piano and drums into an unclassifiable sound. With an amazing range and command of dynamics, singer Mali’s voice can shift from gorgeous and haunting at one moment to brash and sneering in the next, sometimes all within a single phrase. The pure acoustic tones of the harp, piano, and acoustic bass construct a mysterious world with height, depth, and width for Mali’s expressive melodies to explore. Adding colorful patterns and washes of rhythm, drummer Daniel Schubmehl plays with a rare precision and sensitivity that propels the music forward without every trampling the subtlety and delicacy of the songs.