Taking over from the Soul Vendors in the late 1960s as house band at Studio One, The Sound Dimension played on countless classics that formed the very foundation of Jamaican music, with rhythms such as “Rockfort Rock,” “Real Rock,” “In Cold Blood,” and “Drum Son” having since been recycled endless times. This compilation collects 18 of their most killer instrumentals, including those named above, from the era when rocksteady was morphing into reggae, showing a strong yet subtle influence of funk, particularly through Eric Frater’s wah-wah guitar pickings. This disc is worth the price for the shuffling “Great Mu Ga Ru Ga” alone, while the equally rare “Less Problem” and flute serenade “Jamaica Underground” are further highlights. Great stuff!