Kaya (1978) continued what become an unspoken tradition in the evolution of Bob Marley & the Wailers' discography, blending western sounds and motifs with the icons and traditions from the very core of Jamaican society. Themes of commonality and unity replace politics more than on previous albums. This record was pressed using a precision technique known as half-speed mastering, in which the source master and cutting lathe run at half speed on a specially adapted Neumann VMS-80. The result is a cut with excellent high frequency response and solid stereo images. In short, half-speed mastering produces a superlative master of the highest quality.