Create a dark, cinematic, drum-driven march with female ape vocalizations in a foreboding, imperial throne-room style. Use only drums for instrumentation (timpani, bass drum, low snare) to drive a measured, heavy pulse, 70–90 BPM.
All melodic and harmonic content comes from layered female ape voices. Include call-and-response, staggered echoes, and overlapping motifs. Emphasize short, percussive growls and primal shouts for rhythmic and melodic effect.
Build tension gradually with echoing, layered vocals, accented by drum strikes on strong beats, crescendo into a full layered climax. Alternate heavy, ominous motifs with sparse echoing lines. Keep the march precise, commanding, primal, cinematic, and foreboding. Avoid repetitive loops, synths, or non-vocal instruments.