Tenorlied: A German song, in which the tenor vocal line predominates, or has the melody.
Third: The interval of three diatonic degrees.
Time Signature: The numbers written on staff of any piece, indicating which type of note gets a single beat, and also how many beats are in each measure.
Tonal: Music with a center, or tonic, which employs tones which relate to that tonic in a predictable and measurable manner.
Tonic: The key center, or foundation of, a scale or melody.
Treble: The highest voice, instrument, or part.
Trill: An ornament consisting of a rapid alternation between two pitches, the main pitch, and the pitch a whole or half step above it.
Turn: An ornament consisting of four or five notes that move up and down 'around' a given pitch, using that pitch as a tonal center.
Twelve-Tone Music: Music in which no pitch class (or note) is repeated until all other chromatic pitches have been used. Any group of twelve pitches arranged this way is called a row.