Sublime frequencies from the golden era of ambient electronica. Plumbing hidden depths beneath a deceptively tranquil surface, MLO's mid-90s masterpiece Io is an overlooked gem from a golden era for ambient electronic music. Originally released in 1994, Jon Tye and Pete Smith's collaborative album responded to the growing chill-out movement by leaning into classical and avant-garde influences from Satie, Debussy and Cage through to Soft Machine, Incredible String Band and Eno. Recorded across va…