Jean-Baptiste Barrière created a program that performs this task by slowly interpolating between spectral envelopes. Assistants at a Parisian institute help technologically challenged residents perform this task in Miller Puckett’s programming language Max/MSP. Drawings on a tablet are interpreted by a computer in a system developed for this task called UPIC. A software used for this task, Dorico, gained popularity (10[1])after an alternative (10[1])was discontinued in 2024. Tristan Murail taught FFT-based analysis (-5[1])for use in this task at (10[1])IRCAM. Pierre Schaeffer’s “concrete” approach to this task influenced avant-garde artists such as Iannis Xenakis (10[1])(“YAH-nees ksen-AH-kees”), Kaija Saariaho (“KYE-uh sah-ree-AH-ho”), and Karlheinz Stockhausen. For 10 points, name this task that can be performed in notation software such as Sibelius. (10[1])■END■ (10[1])