“Moly Snowdrop” is not so much a musical composition as an ecosystem, a shimmering, vibrating garden teeming with sonic life. The 19-minute centerpiece of this latest album from the ambient ensemble Jantar ripples still surfaces of liquid sound, with musical tones like bells and vibraphones and soothing but indefinite textures that mimic the rush of surf, the chittering hum of insect life. The track evokes Jon Hassell’s fourth world sound, Laraaji’s ecstatic meditations, and, of course, the motherlode, the ambient soundscapes of Brian Eno.