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Card 363 of 10002026-08-24 issue

Observed arrival · 2026-08-24

Voces Teaches the Ear to Follow the Alto

hearvoices.app Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

An iOS ear-training app built around tracking one vocal line through Bach’s four-voice textures.

Landing page captured for the 2026-08-24 issue.

Field notes

The browser exercise reduces polyphonic listening to a controlled identification task: three excerpts, three voice positions, and a question about which part entered last. Voces removes common shortcuts by using the same instrument for every voice and placing them in the center of the stereo field. The page says the iOS app goes further, asking users to sing or continue following a line while the surrounding parts remain audible.

Observed signals

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Editorial observations of this landing page, not a rating.

OpenPublic substance visible
$PaidCommerce or pricing visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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hearvoices.app

Landing page observed 2026-08-24. The live site may have changed.