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Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !
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1.coming next after the twelfth in position
1.position 13 in a countable series of things
ThirteenthThir"teenth` (thẽr"tēnth`), a. [From Thirteen: cf. AS. þreóteóða.]
1. Next in order after the twelfth; the third after the tenth; -- the ordinal of thirteen; as, the thirteenth day of the month.
2. Constituting or being one of thirteen equal parts into which anything is divided.
1. The quotient of a unit divided by thirteen; one of thirteen equal parts into which anything is divided.
2. The next in order after the twelfth.
3. (Mus.) The interval comprising an octave and a sixth.
600 Thirteenth Street • Aluminium. Thirteenth element (Encyclopedia) • Book the Thirteenth • Eli and the Thirteenth Confession • Friday the Thirteenth (album) • Friday the thirteenth bug • Hilbert's thirteenth problem • Japanese Thirteenth Area Army • Missing Thirteenth Amendment • Seventh/Thirteenth United States Air Force • Shriek If You Know What I Did Last Friday the Thirteenth • The Thirteenth Anniversary Show • The Thirteenth Chair • The Thirteenth Dream • The Thirteenth Floor • The Thirteenth Floor (comic strip) • The Thirteenth Guest • The Thirteenth Guest (film) • The Thirteenth Pearl • The Thirteenth Son of the King of Erin • The Thirteenth Tale • The Thirteenth Tribe • The Thirteenth Year • Thirteenth (fairy tale) • Thirteenth Air Force • Thirteenth Amendment • Thirteenth Amendment (disambiguation) • Thirteenth Amendment of the Constitution of Ireland • Thirteenth Amendment to the Constitution of Pakistan • Thirteenth Amendment to the United States Constitution • Thirteenth Army (Japan) • Thirteenth Assembly of Tamil Nadu • Thirteenth Beach • Thirteenth City • Thirteenth Council of Toledo • Thirteenth Dynasty • Thirteenth Ecumenical Council • Thirteenth Federal Electoral District of the Federal District • Thirteenth Knesset • Thirteenth Naval district • Thirteenth Step • Thirteenth Texas Legislature • Thirteenth Van Cliburn International Piano Competition • Thirteenth dynasty • Thirteenth dynasty of Egypt • Thirteenth floor • Thirteenth floor (disambiguation) • Thirteenth tale • University of Northampton (thirteenth century)
floor; level; storey; story; deck[ClasseParExt.]
arrondissement de Paris (fr)[ClasseParExt...]
ordre numérique (fr)[Thème]
no., ordinal, ordinal number[Dérivé]
In music or music theory, a thirteenth is the interval between the sixth and first scale degrees when the sixth is transposed up an octave, creating a compound sixth, or thirteenth. The thirteenth (an octave plus a sixth) is most commonly major Play (help·info) or minor Play (help·info).
A thirteenth chord is the stacking of six (major or minor) thirds, the last being above the 11th of an eleventh chord. Thus a thirteenth chord is a tertian (built from thirds) chord containing the interval of a thirteenth, and is an extended chord if it includes the ninth and/or the eleventh. "The jazzy thirteenth is a very versatile chord and is used in many genres." Since 13th chords tend to become unclear or confused with other chords when inverted they are generally found in root position. For example, depending on voicing, a major triad with an added major sixth is usually called a sixth chord Play (help·info), because the sixth serves as a substitution for the major seventh, thus considered a chord tone in such context. However, Walter Piston, writing in 1952, considered that, "a true thirteenth chord, arrived at by superposition of thirds, is a rare phenomenon even in 20th-century music." This may be due to four part writing, instrument limitations, and voice leading and stylistic considerations. For example, "to make the chord more playable [on guitar], thirteenth chords often omit the fifth and the ninth."
Most commonly 13th chords serve a dominant function (V13), whether they have the exact intervals of a dominant thirteenth or not. Typically, a dominant chord anticipating a major resolution will feature a natural 13, while a dominant chord anticipating a minor resolution will feature a flat 13. Since thirteenth chords contain more than four notes, in four-voice writing the root, third, seventh, and thirteenth are most often included, excluding the fifth, ninth, and eleventh Play (help·info). The third indicates the quality of the chord as major or minor, the seventh is important for the quality as a dominant chord, while the thirteenth is necessary in a thirteenth chord.
In modern pop/jazz harmony, after the dominant thirteenth, a thirteenth chord (usually notated as X13, e.g. C13) contains an implied flatted seventh interval. Thus, a C13 consists of C E G B♭ and A. The underlying harmony during a thirteenth chord is usually Mixolydian or Lydian dominant (see chord-scale system). A thirteenth chord does not imply the quality of the ninth or eleventh scale degrees. In general, what gives a thirteenth chord its characteristic sound is the dissonance between the flat seventh and the thirteenth, a major seventh.
In the common practice period the "most common" pitches present in V13 chord are the root, 3rd, 7th, and 13th; with the 5th, 9th, and 11th "typically omitted". The 13th is most often in the soprano, or highest voice, and usually resolves down by a 3rd to the tonic I or i. If the V13 is followed by a I9 the 13th may resolve to the 9th.
These voice leading guidelines may not be followed after the common practice period in techniques such as parallel harmony and in the following example:
While the dominant thirteenth is the most common thirteenth chord, the major thirteenth is also fairly common. A major thirteenth chord (containing a major seventh) will nearly always feature a chromatically raised eleventh (C E G B D F♯ A) (see lydian mode), except for cases when the eleventh is omitted altogether. "It is customary to omit the eleventh on dominant or major thirteenth chords because the eleventh conflicts with the third," in these chords by a semitone.
Generally found in root position, the inversion of a complete thirteenth chord including all seven notes, itself, "a rare phenomenon", is a theoretic impossible since a new thirteenth chord with a different root along the is produced, for example C major 13 (C-E-G-B-D-F-A) becomes e13 (E-G-B-D-F-A-C) then G13 (G-B-D-F-A-C-E), and so on, when inverted.
Given the number of notes that may be included there are a great variety of thirteenth chords. The following chords are notated below lead sheet symbols: