Fa - In solmization, the fourth degree of the major scale.

Fanfare - A prelude or opening, a flourish, usually played by brass instruments.

Fasola - A system of solmization used in 17th- and 18th-century England and America. Fa, so, and la were given to both c-d-e and f-g-a, with mi used for the seventh degree.

Fermata - Hold; pause .

Festivo, festoso - Festive; merry.

Fifth - The fifth degree of the diatonic scale. Also, the interval formed by a given tone and the fifth tone above or below it, e.g. c up to g, c down to f. Intervals of the fifth may be perfect (corresponding to major), diminished, or augmented.

Finale - The last movement of a symphony or sonata, or the last selection of an opera.

Fine - The end.

First ending - One or more measures which occur at the end of the stanza or stanzas. It is usually indicated:

Fixed do - The system of solmization in which c is always do.

Flat -  A symbol which lowers the pitch of a note one half step.

Form - The design or structure of a musical composition .

Forte -  Loud.

Fortissimo -  Very loud.

Full score - An instrumental score in which all the parts for the instruments appear on their own staves in standard instrumental family order.

Fourth - The fourth degree of the diatonic scale. Also, the interval formed by a given tone and the fourth tone above or below it, e.g. c up to f; c down to g. Intervals of the fourth may be perfect, diminished, or augmented.

Fz - Forzando or forzato. Synonomous with sforzando (sf or sfz).