Empty Orchestra start singing. The music was pumped up and we had a mini party, with mad dancing – that was a memorable scene to film." The filming introduced a number of technical challenges, with the producer Adam Tandy explaining that the simultaneous singing and conversing made production particularly difficult: "To record it all 'clean' and have options in the edit, that was technically hard on everybody." Typically, karaoke scenes in television will see characters sing only the opening lines, but because of the format of "Inside No. 9", the characters in "Empty Orchestra" sing the whole song. Each character sang a
Empty category of its original position, and leaving an empty category behind. Empty categories are present in most of the world's languages, although different languages allow for different categories to be empty. Not all empty categories enter the derivation of a sentence at the same point. Both DP-trace and WH-trace, as well as all of the null heads, are only generated as the result of movement operations. Trace refers to the syntactic position which is left after something has moved, helping to explain how DP-trace and WH-trace get their names. What is meant by "trace" is that there is a position in