As stated on the CD single these tracks were indeed recorded in 1980. This is the original version of "Sierra, Sierra". If you listen to the 1983 version, it has a typically 80s remix production all over it and was no doubt re-hashed for the b-side on Let it Loose. "One Sweet Tender Touch" made it (in a more developed form) on to the "Chris Rea" album in 1981/82. These tracks were possibly originally intended for an album that never saw the light of day (don't forget, two years separate "Tennis" from "Chris Rea"; 1980 would put these tracks somewhere in between). Despite stating on the Soft Top single that these tracks are previously unreleased, this version of "One Sweet Tender Touch" was previously released on the "Que Sera" single in 1988.