perfect fourth

An interval consisting of two whole period, irregular piece. tones and one semitone, as C-F. A period or musical sentence in perfect octave which there is a false cadence or a An interval which contains five cadence in which some other chord whole tones and two half tones. is substituted for the chord built on perfect period the tonic, or first note of the scale, A termination that satisfies the ear; which forms the normal and perfect a perfect cadence at the close of a ending of a period. piece, perfect primes period, perfect Two notes having identically the See perfect period. same pitch, with no chromatic tone Periodenbau n. (pa.'-ri-6d-en-bow) Ger. interval between them. A unison, perfect time The building of periods in music. In medieval music, a measure havperiodic vibration ing a time value of three beats; med i- Any movement that recurs after eval triple time. It was called perfect equal intervals of time; for example, time because it had three beats and the striking of a clock-bell. All harthree was considered the most perfect monic vibrations are periodic, but all of all numbers out of deference for periodic vibrations are not harmonic. the Ble ed Trinity. The signature perle (per-la) Fr. adj. was a complete circle, the most per- Pearled; brilliant: applied to a cafect of all figures, dence means a brilliant cadence, that perfect triad is, a close executed in a brilliant, dash- A fundamental tone with its major ing or spirited manner. third, an interval of four half steps, perpetual canon and perfect fifth, an interval of seven A canon whose termination leads r J iteps- Same as major triad, as v--E-G. directly back to its beginning, and so perfect trill can be sung on, or played, forever. Also called can one infinite A trill with a turn at the close to perpetual fugue perfect or complete it. A composition in strict imitation in perfection which parts progre in a similar In medieval music triple measure, manner but not simultaneously and in perfet to (per-fet'-to) It. adj. such a way that the end leads back to Perfect. See also perfect. the beginning; a canon which can be Pergolo (per'-go-lo) It. n. repeated continuously. 1. Z. Stage Box in for a theatre. operatic performances. perpetual motion Penelesis (per-i-el'-sis) Lat. n. A term applied to certain musical In medieval church music the in compositions so rapid and continuous in movement that they appear to be troduction ofa note or notes in the going on forever. 415 396 perpetuum mobile philharmonic pitch perpetuum mobile (pur - pet' - chu-iim petits riens (pe-te re-afi) Fr. mo'-bi-le) Lat. Short, trifling compositions. Perpetual ual motion. motion. See also perpetpetteia Among(pet-te'-ya) Grk. n. the art of the ancients determining the sounds to be used or tro) et perrecte Lat.retro (piir-rek'-te et rek'- rejected in melopceia, the art or Forward, and then backward: rescience of constructing melodies. versing the theme or the melody, note Euclid was the founder. by note. petto The (pet'-to) chest. It. n. personas, dram at is (dram'-a-tis pur so'-ne) Lat. peu (pu) Fr. adv. The characters of an opera or play, Little; few. personaggio peu a peu (pii a pu) Fr. Personage; (per-son-iid'-jo) one of the characters It. n. of Little by little; gradually. a play. pezzi (pet'-se) Pieces; plural It. of n. pezzo.