Hunting High and Low track was remixed as a dance version, which was a top-5 hit on the U.S. Dance chart, and B-side to the single and remix was the otherwise unreleased "Driftwood." "Train of Thought" saw limited release as the third single in Europe. It was not released as a 7" in the United States but received rock radio play and a set of remixes again made the dance charts. Waaktaar based the lyrics for this song on existentialist authors and poets Gunvor Hofmo, Knut Hamsun and Fyodor Dostoevsky, his favourites at the time. It was A-ha's third consecutive Top 10 single in
High- and low-level High- and low-level High-level and low-level, as technical terms, are used to classify, describe and point to specific goals of a systematic operation; and are applied in a wide range of contexts, such as, for instance, in domains as widely varied as computer science and business administration. High-level describe those operations that are more abstract in nature; wherein the overall goals and systemic features are typically more concerned with the wider, macro system as a whole. Low-level describes more specific individual components of a systematic operation, focusing on the details of rudimentary micro functions rather than macro, complex processes. Low-level