(Down - Top)
IF 9.1 - Contrary Motion
In 4/4 time there are 4 downbeats and therefore also 4 upbeats (or 'offbeat') in each bar.
As explained in Session 5 syncopations on the upbeats 2+ and 4+ have a strong forward motion effect on the music giving it energy and drive.
Syncopations on the upbeats 1+ and 3+ have the opposite effect. They hold up the flow of the music and appear to produce a backward motion.
When both types of syncopations are combined in a phrase it feels to me like a long goods train starting off. When the train starts the carriages at the end move forwards and backwards a number of times (making much clanging noise) until all slack has gone out off the chain and the train moves smoothly forward.

Charlie Parker is probably the most creative improviser in the history of Jazz. His solos, transcribed and published in the Charlie Parker Omnibook are an excellent source for practice and research.For this session I did a small statistical study on the syncopations in three of his transcribed improvisations : 'Confirmation', 'Moose the Mooche' and 'Anthropology'.
The total sample covered 269 bars of music in which I counted 128 syncopations. By no means sufficient to be regarded as a reliable scientific study, but enough to give you a feel for Charlie Parker's approach to syncopation.
| Song
| Tempo
| Syncopation (%)
| Motion
| Frequency
|
| 1+
| 2+
| 3+
| 4+
| Forward
| Backward
|
| Confirmation
| 208
| 20
| 25
| 35
| 20
| 45%
| 55%
| 6-7 beats
|
| Moose the Mooche
| 224
| 23
| 37
| 20
| 20
| 57%
| 43%
| 6-7 beats
|
| Anthropology
| 300
| 18
| 32
| 14
| 36
| 68%
| 32%
| 15-16 beats
|
| Total
| -
| 20
| 30
| 26
| 24
| 54%
| 46%
| 8-9 beats
|
The above table brings out quite a few interesting points.