Renung II is part of a series called 'Renung', a series of contemplative works that explore waveforms and vibrational behavior across different instruments. The series approaches sound as both a physical phenomenon and a space for reflection, focusing on how resonance unfolds, overlaps, and is perceived over time. This particular work begins from a simple curiosity: an interest in how waves and vibrations inhabit the vibraphone resonant qualities; how it lingers, overlaps, and transforms in space. What starts as a close listening to these resonant behaviors gradually unfolds into a deeper exploration, where acoustic properties becomes a material for both research and composition. By blending vibraphone with electronic processing, the piece extends and reshapes these vibrations, revealing hidden layers within the instrument’s sound.