50s: William Goldings 1955 novel about boys stranded on an island?

Questions

- See cadence.?

- A title used byJ.S. Bach for contrapuntal two-part compositions for clavier. Bach called three-part compositions sinfonie but they are now also referred to as inventions.?

- The turning upside-down of a chord or single melody (by applying intervals in opposite directions) or two melodies in counterpoint by the upper melody becoming the lower and vice-versa. This last method is called invertible counterpoint.?

- The mode which, on the white keys of the piano, is represented from C to C (same as C major scale).?

(Gk ., 'equal-rhythmed') - A device used in motets around 1300- 1450 in which the rhythmic pattern is repeated according to a strict scheme. This usually occurs in the tenor line in which the rhythm is repeated several times in diminishing note values.?