FIGURE 1.

Example of high inter‐rater reliability for identifying music and the distributional structure of its voices in one daylong recording. (A) Music bouts: Coder 1 and Coder 2 identified music bouts (purple) throughout the recording. (B) Voices: Coder 1 and Coder 2 identified the specific voices in this recording's vocal bouts (voice identities printed here are fictional, in order to maintain family privacy). Blue tiles show the intersection of Coder 1′s and Coder 2′s identity for each bout; darker tiles indicate a larger number of bouts. This illustration of contingency shows reliable distributional structure (e.g., Coder 1′s ‘Friend’ and Coder 2′s ‘Neighbor’ uniquely identified this voice) with one minor deviation from perfect agreement (e.g., Coder 1 distinguished “FolkSinger” from “CountrySinger” while Coder 2 identified both voices as “LullabySinger”).