tv: Who plays Del boy in Only Fools and Horses?

Questions

- Dominant triad with the addition of the seventh note from its root. ?

- At double the speed of the preceding sectlon .?

- Two bar lines placed closely together to signify the end of a composition or section.?

- Invertible counterpoint in two parts occurring frequently in fugues.?

- A prefix to a note indicating the pitch is to be lowered by two semitones. ?