Zusammenfassung der Ressource
Yiri - Koko
- West African Music
- Oral tradition
- Features:
- Repetition (ostinatos)
- Improvisation
- Call and response
- Layered textures
- Burkina Faso
- 'Yiri'
- Means 'wood'
- Refers to the material that all
the instruments are made of
- Performed from memory
- Score is made later - transcription
- Instrumentation
- Balafon - like a xylophone, wooden bars tuned
to different pitches, gourds hang beneath
- Djembe - drum played with hands
- Talking drum - played with a hooked stick, imitates speech
- Soloist and chorus
- Structure
- Three sections:
- Introduction
- Short balafon solo
- Tremolo used
- Main section
- Drums play an ostinato
- Strong, clear pulse
- Alternates between balafon
solos and choruses
- Includes vocal solo - call and response used
- Coda
- Short balafon phrase is played 5
times in slightly varied versions
- Drum ostinato is
interrupted by rests
- Ends with a bell
- Melody, Harmony and Tonality
- G flat major
- Hexatonic
- Balafons mostly play short patterns,
which often fall from high to low
- Balafon solo breaks between
choruses - more virtuosic
- The notes G flat and D flat
are often emphasized
- This is recognised in the choruses
too - they sing in unison
- Rhythm, Metre and Tempo
- Main metre is 4/4
- Introduction is free tempo, but the
rest of the piece is at a steady pulse
- Frequent syncopation
- Cross rhythms
- Vocal soloist uses triplets
- Drums play a rhythmic ostinato throughout
the piece. It consists of a quaver and two
semi-quavers played repeatedly
- Djembe occasionally fills on top
- Texture and Dynamics
- Mostly layered textures
- Monophonic balafon solo - introduction
- Some heterophonic textures, created
when balafons play different versions
of the same tune at the same time
- Little dynamic variation