What is Composition: Definition and 386 Discussions
Musical composition, music composition or simply composition, can refer to an original piece or work of music, either vocal or instrumental, the structure of a musical piece or to the process of creating or writing a new piece of music. People who create new compositions are called composers. Composers of primarily songs are usually called songwriters; with songs, the person who writes lyrics for a song is the lyricist. In many cultures, including Western classical music, the act of composing typically includes the creation of music notation, such as a sheet music "score," which is then performed by the composer or by other musicians. In popular music and traditional music, songwriting may involve the creation of a basic outline of the song, called the lead sheet, which sets out the melody, lyrics and chord progression. In classical music, orchestration (choosing the instruments of a large music ensemble such as an orchestra which will play the different parts of music, such as the melody, accompaniment, countermelody, bassline and so on) is typically done by the composer, but in musical theatre and in pop music, songwriters may hire an arranger to do the orchestration. In some cases, a pop or traditional songwriter may not use written notation at all and instead compose the song in their mind and then play, sing or record it from memory. In jazz and popular music, notable sound recordings by influential performers are given the weight that written or printed scores play in classical music.
Although a musical composition often uses musical notation and has a single author, this is not always the case. A work of music can have multiple composers, which often occurs in popular music when all members of a band collaborate to write a song or in musical theatre, when one person writes the melodies, a second person writes the lyrics and a third person orchestrates the songs.
A piece of music can also be composed with words, images or, since the 20th century, with computer programs that explain or notate how the singer or musician should create musical sounds. Examples range from 20th century avant-garde music that uses graphic notation, to text compositions such as Karlheinz Stockhausen's Aus den sieben Tagen, to computer programs that select sounds for musical pieces. Music that makes heavy use of randomness and chance is called aleatoric music and is associated with contemporary composers active in the 20th century, such as John Cage, Morton Feldman and Witold Lutosławski. A more commonly known example of chance-based, or indeterminate, music is the sound of wind chimes jingling in a breeze. The study of composition has traditionally been dominated by examination of methods and practice of Western classical music, but the definition of composition is broad enough to include the creation of popular music and traditional music songs and instrumental pieces, and to include spontaneously improvised works like those of free jazz performers and African percussionists such as Ewe drummers.
In the 2000s, composition is considered to consist of the manipulation of each aspect of music (harmony, melody, form, rhythm and timbre), according to Jean-Benjamin de Laborde (1780, 2:12):
Composition consists in two things only. The first is the ordering and disposing of several sounds...in such a manner that their succession pleases the ear. This is what the Ancients called melody. The second is the rendering audible of two or more simultaneous sounds in such a manner that their combination is pleasant. This is what we call harmony and it alone merits the name of composition.
1. In a gas UF6 (uranium hexafluoride) are uranium atoms of both the fissionable uranium isotope 235U , and 238U. To enrich the fissile isotope can let a gas UF6 with natural isotopic composition (0.7% 235U, 99.3% 238U) undergo effusion process. The process is then repeated in many steps in the...
Hello,
I am kindly asking for some help with following theoretical problem.
Imagine at least two lasers emitting light at certain wavelength, each from different angle. Imagine that the rays cross at some point.
Is is possible to observe at the crossing point light of different wavelength...
Chemical Composition (%)
C 0.472
Si 0.216
Mn 0.67
P 0.0014
S <0.0011
Cr 0.077
Ni 0.015
Mo <0.0020
Al 0.026
Cu 0.021
Co 0.0034
Ti <0.0010
Nb 0.011
V 0.0030
W 0.016
Pb 0.014
Mg 0.0011
B <0.0005
Sn 0.0024
Zn 0.0038
As 0.0093
Bi >0.025
Ca...
Is possible to study the composition of a function f with itself when the number of compositions goes to infinity? I am interessed in the functions that can be written as a complex exponential of the function itself. Where i can study this kind of things?
Hi. I'm trying to write some anatomical systems for a game I'm coding, and i need some good data to work from.
Our game is about dogs, not humans, but i figure a human will be close enough
What I'd really like is a case study of a specific organism, and i'd like to know the compositions, by...
Doing a bit of revision at the moment and I've been looking at the baryon spin-1/2 octet and the spin 3/2 decuplet. I've noticed that a lot of particles have the same quark composition. For instance the Δ0 particle from the 3/2 ducuplet has the same quark composition as a proton. Now I know that...
Hi ! This is Mustafa. I recently did my bachelor's and started working with Honda Motors.
So my manager asked me to do a little research regarding the Gear type (SCM415H) used. I have to check how varying the chemical composition of each element will result in the properties of the gear...
Suppose frame ##S^\prime## moves in the positive ##x## direction at ##v## with respect to frame ##S##, and frame ##S^"## moves in the positive ##y## direction at ##v^\prime## with respect to frame ##S^\prime##.
Then,
##E^\prime_x=E_x##
##E^\prime_y=\gamma(E_y - vB_z)##
##E^\prime_z=\gamma(E_z...
Homework Statement
If ## f(x) = sin^2x + sin^2(x+ π/3) + cosxcos(x+ π/3) ## and $$g(5/4)=1$$, then ##(gof)(x)## is equal to?
Options are
0
1
sinx
None of these
Homework Equations
I know gof(x) is g(f(x)) but here g(x) is not given.
The Attempt at a Solution
Basically I think we have to put...
When can I do the following where ##h_{i}## is a function of ##(x_{1},...,x_{n})##?
\frac{\partial}{\partial x_{k}}\frac{\partial f(h_{1},...,h_{n})}{\partial h_{m}}\overset{?}{=}\frac{\partial}{\partial h_{m}}\frac{\partial f(h_{1},...,h_{n})}{\partial x_{m}}\overset{\underbrace{chain\...
I am solving a nonlinear ODE in the form of Newton's Second Law. In the equation, there is a Heaviside Theta Function of the function which I am solving (##\theta (x(t)##). Since it is quite troublesome to have both the left side of the ODE and the imput of the ODE to contain function of unknown...
I've looked around on the internet a bunch, for a standard way to write an arbitrary number of nested functions (eg. ##{f_1}\circ{f_2}\circ\cdots\circ{f_n}##) without ellipses and with a second input variable (eg. the i in ##f_i##), but never found anything. If anyone does this, what is the...
< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown. Initial work is shown in the attachment. >
Hello,
l need to find the acceleration in the D point but i don't know how.
the 2 circles turn in the same speed ( pi rad/s).
I use a simulation...
Homework Statement
An alloy of copper and silver weighing 0.5000 grams is dissolved in HNO3 and treated with H2S to precipitate both CuS and Ag2S. It is found that the solid sulphides weigh 0.7300 grams. Calculate the percentage of Ag in the alloy. (12.9 %)
2Ag+(aq) + H2S(aq)→ Ag2S(s) +...
I am trying to figure out how to make a world where flight is a lot easier. How much easier could it be on a human (or near human) habitable world?
Lower gravitational force might help although too low would presumably be untenable due to loss of the atmosphere?
A higher pressure atmosphere...
Please answer for this question with detailed working.
Let f and g be function from the positive integer defined by the following pairs f: N find the composition.
a) f(n) = n + 60 g (n) = 100n
b) f (n) = g(n) =
c) F(n) = log(n+3)...
Let f and g be function from the positive integer defined by the following pairs f : N →R,g∶N →R. Find the composition f ° g and g ° f.A)
F(n) = log(n+3)
g(n) = log log(n + 10)
....................
B)
F(n) = n log(n+2)
g(n) = n^(1.1)
....................
Could you...
Homework Statement
The problem states that we have L as the linear transformation as:
\begin{align*}
A=
\left(
\begin{array}{ccc}
2 & 0 & 1 \\
-2 & 3 & 2 \\
4 & 1 & 5
\end{array}
\right)
\end{align*}
And when given another linear transformation T as:
\begin{align*}
B=
\left(
\begin{array}{ccc}...
Homework Statement
Hello everyone,
I have completed a lab and I’m working on my report. I’m not sure if my work is correct but I would most definitely appreciate it if anyone could check it for me? I’m particularly having trouble finishing question #3. It’s worth a lot of my grade so I want...
I'm currently completing a project about gas giants. Could anyone point me in the right direction to find out about the density change as one approaches the centre of a giant? I can kind of do it if I assume it's incompressible, but does anyone know the current theories for it in practice...
I need some help with the proof of Lemma 21.2.4 in Eie & Chang's book: A Course on Abstract Algebra:
Lemma 21.2.4 reads as follows:
My questions regarding the proof are as follows:
Question 1
Eie & Chang write:
"... ... It is possible to insert a normal subgroup H of H_{i+1} with H_i...
This is a problem that has been bugging me for ages. I just can't wrap my head around this weird result. I know I went wrong somewhere [as a matter of fact, that was the answer I was hoping for], but most sources, (including, but not limited to, wikipedia), suggest otherwise.
I will cut to the...
The Lorentz's transform:
##x' = k(x - vt), t' = k(t - vx)\ k = \gamma,\ and\ c = 1##
I. The speed composition derivation:
##w' = dx'/dt' = \frac{dx - vdt}{dt - vdx}##
and we divide everything by dt, and:
##w' = \frac{dx/dt - v}{1 - vdx/dt}##
now we assume the dx/dt is some speed u, and the...
I am reading "Introduction to Ring Theory" by P. M. Cohn (Springer Undergraduate Mathematics Series)[/COLOR]
In Chapter 2: Linear Algebras and Artinian Rings, on Page 61 we find a definition of a refinement of a chain and a definition of a composition series.
The relevant text on page 61 is as...
A thread on this forum Plans for Asteroid Mining has more than 9000 views. From that I conclude that belief that asteroid composition must be highly varied mu thast be wide spread. I'm having a hard time understanding why that should be.
So unless the planitesimals formed at approximately...
I'm learning maths myself, but I'm going to university in 2 months. This is my first try at proving anything.
Homework Statement
Prove that the composition of surjective functions is also a surjection.
Homework Equations
A definition of surjective function:
If f:S_1\rightarrow S_2...
Hello, first post here. I'm trying to wrap my head around something here and I'm wondering if anyone can help. I've read that all terrestrial planets have basically the same chemical components - Iron, Silicon, Oxygen, etc - in roughly the same percentages. I also read that the composition of...
Homework Statement
Find conformal function that maps ##D_1=\left \{ z;Re(z)>0,0<Im(z)<2\pi \right \}## on to ##D_2## where ##D_2## is unit disc.Homework Equations
The Attempt at a Solution
Ok, I haven't got any problems with conformal mapping but I have huge problems with function composition...
Recently, my lab has bought a BioRad Turbo Blot Transfer system. It allows for you to do an efficient 7 minute transfer from a minigel to nitrocellulose. The transfer buffer, however is very expensive because you can only purchase it in conjunction with precut nitrocellulose membranes and thick...
Homework Statement
Let f: A→B and g: B→C both be bijections. Prove that the composed function fog is also a bijection. Write (fog)-1 in terms of f-1 and g-1.Homework Equations
fog = f(g(x))
The Attempt at a Solution
I know what the composed function means and what bijective means...
Homework Statement
I have 2 simple harmonic motions and I want to compose them on the same axis. So:
x1 = A1*sin(ω1*t+θ1)
x2 = A2*sin(ω2*t+θ2)
The goal is to find the resultant motion of these 2 in the form:
X = A*sin(ω*t+Θ), so to find A,ω and Θ as functions of A1,A2,ω1,ω2,θ1 and...
What is the funda behind the Elemental Composition Calculation of Cathode Material for Sodium / Lithium Ion Battery (Na2/3 Ni0.4 Mn0.4 Co0.2 O2)/ AMO2? Apart from the Oxidation state calculation, Phase Diagram Elimination of mixtures and Random Compistion, is there any Principle behind it?
Homework Statement
An alloy of gold, aluminum, and copper has a density of 10,000 kg/m3. The alloy contains at least 10% aluminum and 5% copper by mass. The densities for the three metals are respectively ρAu = 19320 kg/m3, ρAl = 2712 kg/m3, ρCu = 8940 kg/m3. Find the maximum and minimum...
Homework Statement
Given that f is continuous and strictly increasing, f:[0, ∞)->[0, ∞), f(0)=0, and d(x,y) is the standard metric on the real number line,
Is there a function f such that d'(x,y)=f(d(x,y)) is not a metric on the real number line?
The Attempt at a Solution
The standard...
Homework Statement
a) Find the inverse of the matrix:
\begin{pmatrix}1 & 2 & 0\\
2 & 0 & 1\\
1 & 1 & 2\end{pmatrix}
(sorry I don't know how to show a matrix more clearly on this)
b) Write A and A-1 as a composition of matrices of the form Rij(k), Tij and D22(k)
Homework...
Homework Statement
Let S : U →V and T : V →W be linear maps.
Given that dim(U) = 2, dim(V ) = 1, and dim(W) = 2, could T composed of S be an isomorphism?
Homework Equations
If Dim(v) > dim(W), then T is 1-1
If Dimv < dim(w), then T is not onto.
The Attempt at a Solution
So...
A body is orbiting the sun and rotates about its axis (z). My coordinate system is co-rotating with the body. I need to determine how does a vector that points to the sun change after a certain period of time. Initially the sun vector lies in the xz plane. Basically I need to find the rotation...
Homework Statement
Find the domain and range of (f+g)(x)
Given that
F(x)= 1/(x-1) and g(x) = sqrt(x)
Homework Equations
The Attempt at a Solution
I added the two functions to get 1/(x-1) + sqrt(x)
To get domain, i look at the restrictive x values for both to get x greater than 0 and not...
So... Theoretically, planets (that are not gas giants, or water planets) could be composed of silicon, iron, or carbon. Are there any other elements that could make up most of a planet?
My teacher discussed an in and out method that could be used however I don't understand how that works. Can someone explain it to me? The teacher said this method would allow us to determine the domain and range without knowing what the graph looked like.
How I have been doing it is looking at...
Homework Statement
If F(x)= 1/(1+x)
G(x)= 1/(2+x)
determine f(g(x))
Homework Equations
No equations for composition functions
The Attempt at a Solution
F(g(x)) = 1/1+ 1/(2+x)
Then do you try to eliminate the fraction in the denominator by multiplying it by (2+x)?
They said...
Homework Statement
Be z=F(u,v,w), u=f(x,y), v=e-αx, w=ln y, get the expression \partialz/\partialx, \partialz/\partialy.
Homework Equations
Chain rule.
The Attempt at a Solution
\partialz/\partialx=\partialz/\partialv*dv/dx=-α e-αx
\partialz/\partialy=\partialz/\partialw*dw/dy=1/y
I have not met differential equations involving the composition functions (also not much literature on it).
Assume we know the form of g=g(x), and need to solve the following differential equation, finding f=f(x):
(g∘f)f'=g
Where g∘f=g(f(x)).
Does anybody have a strategy for solving...
Homework Statement
It's such a gory problem, I'm going to have to attach a small image.
http://i.minus.com/j9XQTP6pIlh1a.png
Homework Equations
PV=nRT
Molarity (M) = moles/liter
The Attempt at a Solution
Okie dokie.
1) Let's find how much iodide reacted with the sulfur dioxide...
What was the primordial composition of U isotopes in solar system?
Solar system contained isotopes less than a million year halflife, because meteors have clear traces of having crystallized with abundant aluminium 26.
So, what was the actinide composition?
We know the exact amount of...
I am reading Dummit and Foote (D&F) Section 15.1 on Affine Algebraic Sets.
On page 662 (see attached) D&F define a morphism or polynomial map of algebraic sets as follows:
-----------------------------------------------------------------------------------------------------
Definition. A map...
I am reading Dummit and Foote (D&F) Section 15.1 on Affine Algebraic Sets.
On page 662 (see attached) D&F define a morphism or polynomial map of algebraic sets as follows:
-----------------------------------------------------------------------------------------------------
Definition. A map...
Suppose you have a mixture of 30 mol% pentane and 70 mol% hexane at 1 atm and 60oC.
If the Tbubble-point = 55.1oC, calculate the composition of vapor of the first bubble as the mixture is heated.
I found p*pentane = 1392.95 and p*hexane = 484.96 using Antoine's equation with T = 55.1.
Now I...