(2001 US CD Reissue Essay by Brian Hogg):
In January 1968 the original Traffic line-up: Stevie Winwood (vocals/guitar/organ), Dave Mason (vocals/guitar), Chris Wood (saxophone/flute) and Jim Capaldi (drums/vocals) had, by January 1968, been reduced to a trio by the departure of Mason. Undaunted, the band took to the road and in doing so discovered an extraordinary bond. Naturally the spotlight fell on Winwood who filled the sound with pedal bass lines, organ and soaring voice, but Capaldi's measured, rhythmic punch and Wood's intuitive woodwind breathed colour into the sound. (A flavour of Traffic as a trio is preserved on two live tracks issued on the 1969 album 'Last Exit').