A swing rhythm can be created by playing only the first and third notes of a triplet. Play the following example which contains a triplet on the second beat.
This example has the first and second notes of the triplet group tied. This gives the example a swing feel.
The two eighth note triplets tied together in the previous example can be replaced by a quarter note.
To simplify notation, it is common to replace the z with 6 and to write at the start of the piece 6 = z as illustrated in the following example.