Listen to 88.5 bpm, D major key, 100 measures. Compose an instrumental rock track with heavy metalcore influences, featuring aggressive and powerful guitar riffs. Begin with a deep, menacing riff to establish a dark and intense atmosphere. Add in heavy drums and a driving bass line for a solid foundation. Progress to complex guitar solos and breakdowns, displaying technical skill and raw energy. Utilize drop-tuning for a deeper guitar sound. Keep a relentless pace with tempo changes and explosive transitions. Include solitary, eerie guitar moments for tension, contrasting with the full instrumental force.