The key of G.

G clef

A clef that indicates which line represents G on a staff, as opposed to a C clef, or an F clef.


A style of 18th century music that was elegant, light, non- contrapuntal, and highly ornamented.

German sixth

A type of augmented sixth chord containing a major third, perfect fifth (or doubly augmented fourth) and augmented sixth above the bass.


“Glory.” In the Mass, the second part of the Ordinary.

grace note

An ornamental note, usually played quickly before the beat. See ornaments.

grand opera

Opera on a large scale, usually entirely sung, in contrast to comic opera.

grand staff

The combination of the treble and bass staves.

Gregorian chant

A body of chants of the Roman Catholic Church, most of which are part of two liturgical rites—the Mass and the Offices. Origins traditionally are ascribed to the period of Pope Gregory I (590-604).


A string instrument from Spain, with a large flat-backed sound box, violin -like curved shape, a fretted neck, and six strings.