Ah, the blues. On the list of most well known types of music. There is no other music style very like it, which has carried such an influence on other music types and which has such a rich heritage.
Surprisingly, although, the Blues is not that tough to play.
The Blues as an oral tradition is usually traced back for the mid 1800s, and finds its roots from Europe and Africa. However, the Blues as we know it nowadays is purely an American style of music. It
very first began to become popularized in the early 1900s, with guys like WC Handy writing songs for instance "Memphis Blues" & "St. Louis Blues."
In the 1920s and 1930s, guitarists used slides from broken bottle necks to create the slide sound (which is something any guitarist should learn when wanting to play the Blues) and within the 1940s
Big Band started to take over. This meant that guitars moved primarily into the rhythm section. Then, the 1950s arrived, where piano blues and guitar blues began to develop into rock and roll and
other types of music. This is also when amplifiers and electrified guitar music became more and more common.
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The Blues is primarily guitar and piano focused, but it could be played on other instruments too. To play the Blues, there are a few tips and tricks that can get you began quickly. Firstly, the Blues
must be played with FEELING. It's a quite less technical style, which you will especially find once you get used to a few progressions, chords and scales. Secondly, get comfy with a Blues rhythm when
practicing (most blues is in 4/4 time signature.) Then, learn to play the Blues Scale and a Blues Progression, and you'll find yourself soon able to play the Blues with feeling and ease.
Let's look at the Blues Scale. It's actually fairly easy to play and works off the major scale. All it is, actually, is the major scale with an added flattened 3rd, 5th and 7th. So, if you were
playing inside the key of C, the Blue Scale would look like this : C D Eb E F Gb G A Bb C. That's it. The scale is ideal for improvising over a blues progression, which you should also practice and
learn to play.
Typically, Blues progressions are done over 12 measures (bars) - which is why it is recognized as 12 bar blues. If you were playing within the key of C, for example, you would play the initially 4
bars inside the root chord (C), the 5th and 6th bars in the 4th interval (F), the 7th and 8th bars back to the root note (C), the 9th and 10th bars within the 5th interval (G) and end off the last
two bars in the root note again (C.) If you wanted to play chords over this progression, you would stick to dominant 7th chords- and to improvise you would just play the Blues Scale as above.
Guitarists can add a few tricks - using a slide, or "wriggling" notes for some extra feeling.
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Blues has this marvelous ability of getting you addicted to it pretty quickly. It actually is a unique style for jamming and improvising, and one particular song can carry on for (literally) hours.
Not only that, but since other forms of music find their roots within the blues, learning to play the blues will increase your ability in those styles as properly.