"The way he and his band move through blues, jazz, gospel, and R&B -- simultaneously -- on the declamatory testimonial "Free" is breathtaking. The intro to "Movin'," near set's end, suggests Bill Withers, but Porter quickly shifts it into higher gear with the horns punctuating the ends of his sung lines. While his first two recordings revealed a major new talent with their promise, Liquid Spirit is a giant step forward artistically, and for the listener, an exercise in musical inspiration".