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If you want to keep the 'kick', you'll have to play it two-handed. You need to play your downloaded MIDI in MidiPiano or another sequencer to see the separate left and right hand parts. This could be enough for the keyboard player in a band to be playing, especially if they were doing vocals as well. Otherwise, settle for a left-hand-only, without-the-kick version.
Instead of the kick, you can roll the left hand and anticipate the little finger, as you can hear in the performance clip. Once you can play left hand solo 12-bar accompaniments, you will want to start adding right hand material. In the [module in preparation], you learn how to play an entire solo 12-bar chorus in G with just two right hand notes, but complete this lesson first!
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12bar_MP_M58
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Remember, you don't have to do the little-finger anticipation to lay down a very acceptable blues/rock'n'roll rhythm.
Pure boogie often uses this pair on a 'shuffle' beat. This audio clip alternates measures of 'straight eight' and 'shuffle beat' left hand patterns, straight eight first.
NOTE: This is purely a listening-and-practising clip – you would never hear such a thing in performance.
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12bar_MP_M59
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As you can hear, the shuffle feel is lighter and wants to 'get on with it' – it suits a faster tempo.
Here's an shuffle feel audio performance at a more suitable speed, using the 'two only' left hand and a right hand made from pure 'Moving Pair' material.
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12bar_MP_M60
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You might be able to play this, right away! Study the MIDI performance with MidiPiano and see if you can get it. Otherwise, carrying on working through this module and then click through to the follow-on module [in preparation], where you start developing your own two-handed boogie stylings.
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Shuffle rhythm is sometimes called 'swing quavers' or 'triplet feel' in jazz. Written-out swing quaver/shuffle beat music is very confusing to read, so it's often written as straight quavers with the 'shuffle' rhythm indicated by this little 'Swing quavers' device:

So the audio performance you've just heard would be written like this:

It would sound like the audio performance immediately above, NOT like this, which is the straight-quaver version the music actually represents.
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(Audio only)
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12bar_MP_M62
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12bar_MP_M63
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Audio challenge! This performance is eight bars long, and uses chords G, C and D. Can you write down the chord sequence?
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The major/minor thirds inside is a common decoration in shuffle beat boogie left hands too. Here's an example.
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12bar_MP_M64
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As you listen to archive 12-bar performances by the boogie-woogie greats like Albert Ammons, Pinetop Smith and Meade "Lux' Lewis and the records of the early rock'n'roll pianists like Jerry Lee Lewis, Little Richard and 'Fats' Domino, you will hear dozens of shuffle boogie and straight-eight accompaniment patterns.
Soloing aside, most of these patterns use material already covered in the Musicarta Moving Pair riff series, and as your ear 'tunes in' to the material, you will realise that you can - or almost can - play them. You will want to start getting the material under your belt and moulding into your own unique 12-bar style.
The trouble is, not all 12-bar music is in key G! You have to be able to play in other keys, too!
The easiest way to learn to play the 12-bar material in these modules in other keys is to use the 'Key' utility in MidiPiano to raise or lower the whole MIDI performance file in pitch.

Use the up and down arrows to change key. Here's a table showing the number to use to transpose our G major 12-bar material into various other common keys.

Top musicians can transpose music into other keys in their heads, often without even thinking about it. Most of them have learned this skill by 'going through the motions' dozens and dozens of times.
Using MidiPiano to transpose and copying the result definitely qualifies as practise. You will start to see how the black keys help make other notes sound like 'home' (the 'tonic'). Musicarta presents many opportunities to learn this key professional skill. The Canon series has a dedicated section.
Check out the Transposing page (tab on the navbar) and use the Musicarta site Search page to find other Musicarta transposing material and exercises. Put yourself on a regular diet of transposing simple music like these 12-bar accompaniment patterns. Repetition works! Transposing reveals the bare bones of music – once you start to see how it works, all your musical learning speeds up.
This is the end of this Moving Pair Module Seven supplement module, 'Boogie Left Hand Patterns'.
To proceed, click back to Module Seven and listen to another of the 'other riffs' to see what you'd like to play next. Have another go at getting it by ear, then click through to the relevant module to develop your performance.
Once you can play left hand solo 12-bar accompaniments, you will want to start adding right hand material. Click through to the follow-on module [in preparation] to learn how to play an entire solo 12-bar chorus in G with just two right hand notes.
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Stay posted! Keep up to date with Musicarta’s ongoing module roll-out by bookmarking the Musicarta blog page and checking in regularly, or get the Musicarta RSS feed (subscribe here or use the orange RSS button below the navbar, top left) for no-hassle updates. (Not sure about RSS? Click here for a short explanation.)
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12-BAR/BLUES
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