Omitting Notes From Chords
Because there are four notes in a 7th chord, they are often more difficult to play than major chords. When using 7th chords it is common to leave out one of the notes. The most commonly omitted note is the 5th, although sometimes the 3rd or the root can be omitted.
Usually the left hand will be playing the root note anyway. As long as the b7 degree is in the chord you still get the effect of a 7th chord. Here are some examples of partial 7th chords.
Listen to how good these chords sound when applied to a 12 bar Blues progression. Notice the use of first and second endings in this example. If you are not familiar with first and second endings, see Progressive Beginner Piano.
Here are some more parts which make use of 7th chords. When you have learnt these ones, try
creating some of your own.
This one alternates between C minor and F7. Practice the left hand part by itself at first if you have trouble co-ordinating the two hands.
It is also common to break up 7th chords and alternate them with major chords as shown in this example.
