344 Answered Questions for the topic Theory

05/27/19

Understanding Time Signature: How do I identify the time signature of a song?
I have played music for years and I still don't understand what a time signature actually signifies. I understand it from a superficial sense. If given sheet music I could tell you what time... more
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05/27/19

Tonicisation of Secondary Dominant in D Minor?
Okay, so I'm basically just hoping someone can tell me if I'm on the right or wrong track here. I have to implement the technique described in the title in a piece I've written for an... more
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05/27/19

Trouble writing chord progressions in minor?
I've been composing in major for some time and decided to work in a minor key for practice. It's not going too well – I'm having trouble using common techniques in major, such as utilizing the... more
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05/27/19

Parallel chord substitutions?
Are parallel chord substitutions common in (classical) music (if so, please share some examples)? And do they have the same function as the original chords? By saying parallel chords I am... more
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05/25/19

How to determine whether a language is LL(1) LR(0) SLR(1)?
Is there a simple way to determine whether a grammar is LL(1), LR(0), SLR(1)... just from looking on the grammar without doing any complex analysis? For instance: To decide whether a BNF Grammar is... more
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05/25/19

Why is number of bits always a power of two?
We have 8-bit, 16-bit, 32-bit and 64-bit hardware architectures and operating systems. But not, say, 42-bit or 69-bit ones.Why? Is it something fundamental that makes 2^n bits a better choice, or... more
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05/24/19

What's "P=NP?", and why is it such a famous question?
The question of whether P=NP is perhaps the most famous in all of Computer Science. What does it mean? And why is it so interesting?
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Theory Music Theory

05/24/19

Tempo and Rhythm?
If an eighth note is half the duration of a quarter note, would the duration of an eighth note played at 60bpm be equal to the duration of a quarter note at 120bpm? If yes, why was the concept of... more
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05/24/19

On a guitar, what keys correspond to different capo positions?
I've long had this question. I know some music theory, but I can only get a vague idea as to the progression of keys when moving the capo down a guitar's neck. I'm fairly certain that the guitar is... more
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05/24/19

Monopoly and Taxes (Nicholson Exercise)?
Hello I'm working through **Microeconomic Theory : Basic Principles and Extensions** of Nicholson and Snyder 10e, for an exam and I fail to get how to answer this question (p.517) :> A specific... more
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Theory Music Theory

05/24/19

Why is the 11th often sharpened?
A book I'm reading suggests that there are two reasons that the 9#11 chord is more common than the 11th chord, and I don't understand either. > First, the natural 11th interferes with our... more
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05/24/19

Notes in an A13 chord?
Does an A13 chord include the 11th? Here's why I'm asking... If you google this chord for piano, sometimes the third (C#) is omitted and sometimes the 11th (D) is omitted -- but sometimes they are... more
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05/24/19

Comparing two Calendar objects?
I want to compare two Calendar objects to see if they both contain the same date. I don't care about any value below days.I've implemented this and I can't think about any case where it should... more
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05/24/19

Implication of the concavity of u?
>Suppose that we have the following inequality: >$u( y- d) - u(y-d') \\ge u(y' - d) - u( y' -d')$.>The concavity of $u$ together with $y\\le y'$ then implies that $d \\le d'$.I sometimes... more
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05/24/19

Consequences of a positive uncovered interest rate parity (UIP) spread for an emerging market economy?
Empirically we observe that the uncovered interest rate parity (UIP) does not hold; in fact the exchange rate adjusted return on an emerging market bond is higher than the return on US bonds; I... more
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05/24/19

Why does Cdim7 contain an A instead of a Bb?
CM7 - C, E, G, B C7 - C, E, G, Bb Cm7 - C, Eb, G, Bb Caug7 - C, E, G#, Bb But... Cdim7 - C, Eb, Gb, A. Why Does Cdim7 contain an A and not a Bb?
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05/24/19

What key is a piece in if an augmented chord is used as a dominant?
I personally think that augmented chords can be just as consonant as major if used in a certain way. For example, in the first octave of a piano, if I play an augmented chord, yes it will want to... more
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05/24/19

Calling base class overridden function from base class method?
public class A {  public void f1(String str) {   System.out.println("A.f1(String)");   this.f1(1, str);  }    public void f1(int i, String str) { ... more
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05/24/19

Understanding chord prolongations?
Harmonically oriented neo-Schenkerian analysis and generative theories have in common the concept that a single chord can be "prolonged" over a given span of music, even if not every (or even any)... more
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05/24/19

How would you access Object properties from within an object method?
What is the "purist" or "correct" way to access an object's properties from within an object method that is not a getter/setter method?I know that from outside of the object you should use a... more
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05/24/19

When to use different scales or modes over chord progressions?
I know my major/pentatonic/blues scales pretty well, and I can apply it pretty fluently when playing over 1-4-5-min6 chord progressions, but I find that when I try to improvise over more... more
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05/24/19

Efficiently finding the intersection of a variable number of sets of strings?
I have a variable number of ArrayList<String>'s that I need to find the intersection of. A realistic cap on the number of sets of strings is probably around 35 but could be more. I don't want... more
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05/24/19

The consequences and pros/cons of flushing the stream in c++?
I have recently read an article which stated that using `\ ` is preferable to using `std::endl` because `endl` also flushes the stream. But when I looked for a bit more information on the topic I... more
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05/24/19

What is fuzzy logic?
I'm working with a couple of AI algorithms at school and I find people use the words Fuzzy Logic to explain any situation that they can solve with a couple of cases. When I go back to the books I... more
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05/24/19

How to write a simple database engine?
I am interested in learning how a database engine works (i.e. the internals of it). I know most of the basic data structures taught in CS (trees, hash tables, lists, etc.) as well as a pretty good... more
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