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 string confused with the empty language ∅, which is a formal language (i.e. a set of strings) that contains no strings, not even the empty string. The empty string has several properties: In context-free grammars, a production rule that allows a symbol to produce the empty string is known as an ε-production, and the symbol is said to be "nullable". In most programming languages, strings are a data type. Strings are typically stored at distinct memory locations. This means that the same string (for example, the empty string) could be stored in two or more places in memory. In this way