Designing Percussive Timbre Remappings: Negotiating Audio Representations and Evolving Parameter Spaces Real-time Timbre Remapping with Differentiable DSP Mapping timbre variations from an acoustic percussion instrument to a synthesizer in real-time using DDSP. Differentiable Modeling of Percussive Audio with Transient and Spectral Synthesis Percussive audio synthesis using a combination of sinusoidal modelling techniques and neural audio synthesis.