Lullaby
Overview
 
A lullaby is a soothing song
Song
In music, a song is a composition for voice or voices, performed by singing.A song may be accompanied by musical instruments, or it may be unaccompanied, as in the case of a cappella songs...

, usually sung to young children before they go to sleep, with the intention of speeding that process. As a result they are often simple and repetitive. Lullabies can be found in every culture and since the ancient period.

Typically a lullaby is in triple metre
Triple metre
Triple metre is a musical metre characterized by a primary division of 3 beats to the bar, usually indicated by 3 or 9 in the upper figure of the time signature, with 3/4, 3/2, and 3/8 being the most common examples...

, or in a compound metre like 6/8. Tonally, most lullabies are simple, often merely alternating tonic
Tonic (music)
In music, the tonic is the first scale degree of the diatonic scale and the tonal center or final resolution tone. The triad formed on the tonic note, the tonic chord, is thus the most significant chord...

 and dominant
Dominant (music)
In music, the dominant is the fifth scale degree of the diatonic scale, called "dominant" because it is next in importance to the tonic,and a dominant chord is any chord built upon that pitch, using the notes of the same diatonic scale...

 harmonies: Because the intended effect is to put someone to sleep, wild chromaticism
Chromaticism
Chromaticism is a compositional technique interspersing the primary diatonic pitches and chords with other pitches of the chromatic scale. Chromaticism is in contrast or addition to tonality or diatonicism...

 would be somewhat out of character.

Many Christmas carols are designed as lullabies for the infant Jesus, the most famous of them being "Silent Night
Silent Night
"Silent Night" is a popular Christmas carol. The original lyrics of the song "Stille Nacht" were written in Oberndorf bei Salzburg, Austria, by the priest Father Joseph Mohr and the melody was composed by the Austrian headmaster Franz Xaver Gruber...

".
In 1072, Turkish writer Mahmud al-Kashgari mentions old Turkish lullabies as 'balubalu' in his book Dīwānu l-Luġat al-Turk (Compendium of the languages of the Turks).
Quotations

"Anymore, no one's mind is their own. You can't concentrate. You can't think. There's always some noise worming in. Singers shouting. Dead people laughing. Actors crying. All these little doses of emotion. Someone's always spraying the air with their mood."

"Our footsteps echo against the concrete floor. The steel roof hums with rain. And she says, 'Don't you feel, somehow, buried in history?'"

"Imagine the books burning. And tapes and films and files, radios and televisions, will all go into that same bonfire. All those libraries and bookstores blazing away in the night. People will attack microwave relay stations. People with axes will chop every fiber-optic cable."

"The muffled thunder of dialogue comes through the walls, then a chorus of laughter. Then more thunder. Most of the laugh tracks on television were recorded in the early 1950s. These days, most of the people you hear laughing are dead."

"Power corrupts. And absolute power corrupts absolutely. So just relax, Helen Boyle told me, and just enjoy the ride. She said, "Even absolute corruption has its perks."

"The trick to forgetting the big picture is to look at everything close-up."

"There are worse things you can do to the people you love than kill them."

 
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