Full score - An instrumental score in which all the parts for the instruments appear on their own staves in standard instrumental family order.
Linear - Melodic; horizontal lines.
Meter signature - The numbers placed at the beginning of a composition to indicate the meter of the music, e.g. . The upper number indicates the beats in a measure; the lower number tells what kind of a note will receive one beat.
Overtones - The almost inaudible higher tones which occur with the fundamental tone. They are the result of the vibration of small sections of a string (instrument) or a column of air. Other general terms for overtones are partials and harmonics.
Pianississimo - Very, very soft; the softest common dynamic marking.