playbooks
A musical pieces intended as practice aid is called an étude.
They can be called Instrument Makers.
it is called the mouth of the river
The C minor equivalent of a given musical key is B major.
The military position given to Josephus was that of Roman Procurator of Judea. This is considered the beginning of the Jewish Wars, and the first Jewish-Roman War, in history.
spring
Frontis piece is the illustration at the beginning of a book
They were called Cavaliers, originally as a term of abuse!
A slide, for example on a trombone, is called a glissando. I guess you could use the same term on a stringed instrument like guitar.
The letters in music are called the musical alphabet. The letters represent notes, and there are 12 of them. Natural notes are given the letters A through G. The other notes are in between natural notes and they are called sharps and flats.
Odeon
A musical bar, also known as a measure, is a segment of time in music that contains a specific number of beats as determined by the time signature. It provides a structured framework for organizing musical notes and rhythms within a piece of music.