2026 NIME PHOTON: Non-Invasive Optical Tracking of Key-Lever Motion in Historical Keyboard Instruments Noah Jaffe and John Ashley Burgoyne In Proceedings of the 2026 International Conference on New Interfaces for Musical Expression (NIME), Jun 2026 arXiv PDF Video H&f The Portable Harpsichord: Past and Present Noah Jaffe Harpsichord & fortepiano Magazine , Vol. 30 , No. 2 , pp. 12–16 , 2026 Spring 2026 PDF 2025 WASPAA Musical Source Separation Bake-Off: Comparing Objective Metrics with Human Perception N. Jaffe and J. A. Burgoyne In Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Nov 2025 DOI arXiv PDF