When Rigg joined the series in 1965, the opening credits of the series were redesigned and new theme music by Laurie Johnson was introduced. This was based on a previously released title, on LP called "The Shake" (which capitalised on "The Shake" dance craze of the '60s). For the colour series (1967), a percussion section was added to accompany the new teaser sequence at the start of each episode. Johnson re-scored the theme when Linda Thorson joined the series, adding a counter-melody on trumpet, based on the leitmotif for Tara King from the final Rigg episode "The Forget-Me-Knot". The new theme debuted in the closing titles of the episode "The Forget-Me-Knot", which introduced Thorson. It was altogether more dynamic, and included a much more frenetic percussion section, for the revised teaser sequence. Importantly, the filmed episodes contained specially composed scores by Johnson. To accompany Steed's request "Mrs Peel – we're needed!", he composed a brief 'sting', and there was also a special theme for 'Emma'. For the 'Thorson' series, a characteristic piece was composed to accompany the tag scene, at the end of each episode. Many of the most memorable cues from the Rigg/Thorson series, including the opening, and closing titles themes, and the 'Tag Scene' were released commercially on CD in 2009.