In this key the trumpets blaze out with an effect which entirely depends upon their restricted part hitherto.
A subject so vast and so incapable of classification cannot be discussed here, but its aesthetic principles may be illustrated by the extreme case of the trumpets and horns, which in classical times had no scale except that of the natural harmonic series.
This scheme, with the addition of a pair of trumpets and drums and, occasionally, oboes, forms the normal orchestra of 18th-century Masses developed or degenerated from this model.
One of the expository discourses of John Knox (1505-1572), we are told, was of more power to awaken his hearers than a blast from "five hundred trumpets."
The choice of three series of seven seals, seven trumpets and seven bowls, to form the framework in which the history of the last woes is to be given, shows the same hand that addressed the churches as seven.