Bird calls ring out over a thin drone.

A resonant horn tone leans into the drone.

A mid-register voice presses in over sustained strings.

Long vocal phrases ride the string bed without much else.

The voice softens and draws back.

Deep frame drums enter with a steady pulse.

The percussion settles heavier and more locked.

Stacked voices join over the drum floor.

The voices push harder against the drums.

Voices crest over the pounding drum pulse.

The same drum pulse keeps driving under the massed voices.

Another crest of chant rides the unbroken motor pulse.

The lead voice returns in tighter phrases over the drums.

The drum-and-voice wall begins to open.

Drums fall away, leaving string drone and a soft voice.

One string tone decays into the room.