Gamut—all the tones of a scale.
Glissando—playing a scale on the keyboard by drawing the finger along over the keys, thus depressing them in very rapid succession. The word is derived from the French word glisser—to glide.
Harpsichord—one of the immediate predecessors of the piano.
Humoresque—a capricious, fantastic composition. (Cf. fantasia.)
Idyl—a short, romantic piece of music in simple and unaffected style.
In alt—pitches in the first octave above the treble staff. Thus e.g., "C in alt" is the C represented by the second added line above the treble staff.
In altissimo—pitches in the octave above the alt octave.
Instrumentation—see orchestration.
Interlude—a short movement between two larger movements.
Loco—place; i.e., play as written. (See [p. 15], [Sec. 46].)