Flexible 4 part treble voicing. “Umoja” is the first principle of Kwanzaa meaning unity. This setting is designed to incorporate improvisation and can be performed in any combination of voices and/or instruments. Percussion instruments such as the kalimba, atoke bells, or djembe drum can be added in a rhythmic yet improvisatory manner to create a richer texture. The rhythm should dissipate as the aleatoric section begins.