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Showing posts with label Time Signature. Show all posts
Showing posts with label Time Signature. Show all posts

Friday, October 18, 2013

Diatonic Chord Progressions: The Baseline of Songwriting

Today we're going to talk about a subject that is very dear to my heart: Chord Progressions and how they relate to songwriting. If you've ever had the dream of becoming a songwriter and given up after little success, there are three things that probably got in your way of becoming famous.

 First of all, as my rhyming dictionary loves to remind me, writing good lyrics takes time and patience to master. Whether you become inspired to write a lyric or it just comes to you in the middle of the night, lyrics need to be refined and practiced in order to be "good". Now "good" is a flexible term because the quality of the lyrics all depends on your audience. Are you writing for the opening of the next concert center in your city, or for personal enjoyment?

This brings us to my second point. Self-confidence is needed in order to be a good writer. The ability to write down a couple lines of lyrics or a measure of melody and be *ok* with what you wrote the next morning is a skill that even I haven't learned yet. The important thing to remember is that no matter what you write down, you need to KEEP IT. Get a journal, take a note on your iPhone, or record it somehow, but don't just throw it away. Keeping ideas around, even if you think it's garbage, will stand as a milemarker to how far you have come as a write, and might even inspire you later on through the words that once didn't.

Finally, and most importantly, beginning song writers don't have a firm concept of chord progressions. To clarify, a chord progression is a series of music chords or notes with the goal of establishing a tonality within a specific key and is based on the succession of root relationships. Big definition right? Let's break this down in todays video, and then apply it to some popular songs so we can understand, as music writers, the fundamentals of chord progressions.

To start with, lets understand that today will only be spent discussing diatonic chord progressions. This means that all the triads and chords we will build our progression from will be within the same key. This means that if we want to make a progression in which the root, or tonic, is in the key of C, we will not find chords that are out of this key (such as Ab or Cm).

Diatonic Chords in the key of C Major

(the 2, 3, and 6 of this progression are minor, meaning that the roman numerals should have lower case (i's))
In the picture above the following chords are shown in the key of C major:

   I                 ii                  iii                   IV                        V                   Vi               Vii diminished
tonic      supertonic      mediant       subdominant         dominant       submediant            subtonic

As stated before, a chord progression is a series of of chords, so we know that in order to create a progression we're going to have to put these chords in some sort of order. But wait, is it really that simple? Well....yes. There are no set rules as to what chords follow others in a chord progression. This leaves room for creativity within compositions so we aren't constrained to a few styles of progressions. That being said, there are guidelines for deciding what chords should follow others in a chord progression.

Typically, root relationships revolved around the distances that chords have from each other. This distance is based from the interval space between the tonic (1st) note of each triad. For example, the root relationship between the (I) and the (iii) chord in the key of C Major is a major 3rd. This is because the root of the (I) chord is (C), and the distance between it and the root of the (iii) chord, (E), is a major third.

These types of relationships form strong connections between chords. In classical music the relationship between the (V) and the (I) chord is important in the context of many cadences. A cadence is a harmonic configuration which gives the phrase of music a sense of resolution or pause. Another relationship in chord progressions that can be heard is the (IV) to (I) cadence, which is often displayed in Church Music as the "A-men" phrase at the end of a prayer.

Lets now apply this to a song that I am currently singing in my Concert Choir.


*Note: This piece is in the key of E Major*

The focus of this picture is the cadence that occurs at the end of the crescendo ("home"). As a baritone, my line goes from an (E) to a (B), which is a 4th interval. But look at the other parts. If we connect the notes that the composer spread throughout the voice parts, then we end up with a (E6) and a (B) Chord. The relationship between these chords is a 4th, but because the piece is in E major this transition is from the tonic chord (I) down to the Dominant (V) if gives the phrase a sense of continuation. Instead of simply ending the phrase and moving on to the next musical idea, this composer decides to create anticipation within the music that brings about the main focus of the piece. 

Let's now look at the opposite within the same piece. 



This is a measure from a later section of the piece in which a cadence is used to end the phrase. Here, the notes I sing in the bass line still have the 4th relationship. The two chords (A6) and (E) also share this relationship. Now if you think about the two cadences we've looked at so far, you'll notice they they both incorporate movement in 4ths. But in the first cadence a 4th is used to introduce a new phrase by going down in tonal movement from the tonic to the dominant, while the second moves down from the subdominant to the tonic. By returning to the tonic chord it brings the phrase to a sense of closure, allowing the music to shift focus or enforce another idea. 

So through these examples we see the affect of movement between the chords. Movement away from the tonic, or any chord really, can have different affects on the music depending on if they're moving up or down the diatonic scale. Through this method, ideas in the music can be expressed as transitions or closing statements, all while using the same relationships between the chords. 

Thanks for reading and if you have any questions about the concept of root relationships and movement let me know by commenting on the post below!

Sincerely, ZS 

Thursday, October 3, 2013

Time Signature and Different Types of Meter

Today we're going to talk about time in pieces of music. More specifically, the differences between different types of time signatures, and how they represent different forms of meter within a piece.

A Time Signature gives you two important piece of information when reading music:

1. How many beats are in a single measure
2. What note value constitutes one beat within a measure

By Beat, I mean the primary unit of rhythm in music. This beat can be heard through the use of instrumentation (such as the bass drum in a rock ballad, or an artificial bass affect in a electric song), and typically gives the piece it's structure. Let's look at an example:


The two numbers in red make up the time signature for a piece of music. The top number tells us that there will be 4 beats per measure, and the bottom note tells us that a quarter note equals 1 beat.


(Also note that the time signature is placed after the clef symbol, in this case, the treble clef)






So your standard measure of 4/4 time is going to look like this:



Now this is a simple example of how notes fit within the measure according to the beat. Remember that melody lines are not limited to only using the note values given by the time signature! There could be eighth-notes, half-notes, even triplets in this measure and it would still be considered 4/4 time as long as the sum of the note values used is equivalent to 4 quarter notes.

Here's an example of a song that uses 4/4 Time. (just so you can get a feel for it)

(Try to tap out the rhythm played by the piano. You'll notice that the measure are divided by taps of four)




So that's 4/4 time, but what if we change the top number? Lets now look at 3/4 time.


Because the top number in the time signature is 3, only three beats are allowed per measure. The bottom number is still 4, so the quarter-note still represents 1 beat.




Example of 3/4 time. (It's a waltz)



Lets now see what happens when we change the bottom note. (This is where things can get a bit confusing if you are unfamiliar with music notation)


Top Number: 6- there are going to be six beats per measure.


Bottom Number: 8- the eighth-note gets the beat.

So one simple complete measure would have 6 eighth-notes, each representing one beat of the measure.

Makes sense?
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Assuming that you have a firm grasp on time signatures, let's now talk about how time signatures divide pieces of music into either Simple or Compound meter.

If a piece of music is in simple meter, than the beat cannot be subdivided any further than indicated, and the "pulse" of the song falls on the beat. For example, the American Folk song Yankee Doodle is in simple meter because the melody falls on the beat within the 2/4 time it's played in.

If a piece of music is in compound meter, than the beat indicated by the time signature can be further simplified and defined by the "pulse" of the music. For example, the American Folk song When Johnny Comes Marching Home is considered to be in compound meter because the beat can be expressed as both 6/8 and having 2 beats with two subdivisions of 3.

Here are some examples of Simple and Compound meter:

Simple
2/4
3/4
4/4

Compound
6/8
9/8
12/8

Notice this pattern between the two forms of meter;

6 / 3 = 2 ---> Duple
9 / 3 = 3 ---> Triple
12 / 3 = 4 ---> Quadruple



These three numbers represent the basic beats that songs are composed of. If there are two pulses in a song, then it would be described as having a "Duple" feel. Likewise if there were three pulses as in a waltz it could have a "triple" feel. 

Lets look at a couple example of combining these terms with ones we learned earlier. 

3/4 = Simple triple: Simple division of the beat and there are three beats in the measure. 

6/8 = Compound duple: Subdivisions of the beat are present in the meter, and there are two subdivisions. 

12/8 = Compound quadruple: Subdivisions of the beat are present, and there are four subdivisions. 

2/4 = Simple duple: Simple division of the beat, and there are two beats in each measure. 

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If you guys have any questions about time signature, compound and simple, or distinguishing between duple, triple, and quadruple meter, then please leave comments below so I can answer them! 

I will be posting some examples of different forms of meter in a couple days, so stick around it this is still a little confusing! 

Sincerely, ZS