Seals & Crofts -Summer Breeze - (Quadio) Blu-Ray Audio Disc

Quadraphonic sound, or 4.0 surround sound, utilizes four audio channels connected to four speakers positioned at the corners of a listening space. The multi-tracked audio is mixed dimensional, immersing the listener in an expansive soundscape.

Seals & Croft's 1972 commercial breakthrough Summer Breeze included chart-topping folk-rock hits "Hummingbird" and the title track, peaking at No. 20 and No. 6 on the Billboard Hot 100. The album went on to place No. 7 on the Billboard Top LPs chart, their highest-charting album since.