Rhythmic support for what exists:
- Joining in with the playing of an existing rhythmic figure, thereby strengthening the weight of this figure and enriching the tone colour
- Adding a complementary rhythm, thereby enlarging the complexity of the rhythm already in progress
Harmonic support for what exists:
- Broadening the harmonic situation by adding tones, sounds or movements of one’s own that fit in with the character of what already exists:
- Joining in performance of melody lines performed by fellow musicians, in the process harmonising the original movement through selection of other tones or additional voices
- Enriching and enlarging chords by adding tones not yet found in the sound
- Etc.
Mental support for what exists:
- Introducing oneself into the flow of a musical event.
Productively and creatively taking part in the music already in progress, absent any intention to fundamentally modify what exists.