Yutong Wen and Jocelyn Xu graduated with their M.S. degrees in computer science. They have been such cool and fun students to work with, and it was my great pleasure to work with them on their theses, titled “User-Guided Audio Source Separation with Diffusion-Based Generative Models” (Yutong) and “Singer-Informed Vocal Source Separation for Multi-Singer Music Mixtures” (Jocelyn).