apologetic, but the theme music remained. Derbyshire created two arrangements in 1963: the first was rejected by the producers, but was released as a single. The second arrangement, a slightly modified version of the first, was used on the first episode of the programme. The two 1963 arrangements served, with only minor edits and additions requested by the producers, as the theme tune up to 1980 and the end of Season 17. The most notable of these edits were addition of 'electronic spangles', and tape echo, from the second episode of Patrick Troughton serial The Faceless Ones (1967) onwards (although it was originally made for preceding serial The Macra Terror, a production error led to the previous arrangement still being used; this also occurred in episodes 4 and 5 of Fury from the Deep). 1970s During the Third Doctor's era, beginning in 1970, the theme tune was altered. The theme was edited to match the new credit sequence, with an added stutter/pre-echo to the bassline at the start of the theme, a shortened introduction and part of the main motif repeated to fade at the end of the titles. The "middle eight" was no longer used in the opening sequence. Over the closing credits, parts of the tune were duplicated as required for the theme to end with the credits, rather than fading out as it had previously. The "sting", an electronic shriek, was added to punctuate the episode cliffhangers and serve as a lead-in to the closing theme from The Ambassadors of Death (1970) onwards, with the "middle eight" also falling out of use in the closing credits from this serial. The first three serials of Season 8 reverted to the 1967 arrangement before reinstating the Third Doctor's arrangement for the last two serials of that year. During the Fourth Doctor era, the "middle eight" was heard on only four episodes during his first six seasons – The Invasion of Time parts 3, 4 and 6 and The Armageddon Factor part 6. The adoption of Peter Howell's arrangement in 1980 re-instated the section. In 1972, there was an attempt by Brian Hodgson and Paddy Kingsland, with Delia Derbyshire acting as producer, to modernise the theme tune using the Radiophonic Workshop's modular "Delaware" synthesiser (named after the Workshop's location at Delaware Road). The "Delaware" arrangement, which had a distinct Jew's harp sound, was not well received by BBC executives and