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Card 357 of 9982026-08-21 issue

Observed arrival · 2026-08-21

Guitalele, the tuner that listens

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

A free Catalan-language guitalele tuner, chord checker, practice game, and song guide that runs offline in the browser.

Landing page captured for the 2026-08-21 issue.

Why it surfaced

This unusually focused tool uses the microphone to identify notes and verify chords, while keeping the audio on the device. It also turns practice into a timed game: play 20 chords in 40 seconds to unlock the next level.

A free Catalan-language guitalele tuner, chord checker, practice game, and song guide that runs offline in the browser.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

One card from the complete issue

The Missing Knob Bulletin

359,677 arrived 1,000 judged 998 catalogued Enter the complete issue
guitalele.app

Landing page observed 2026-08-21. The live site may have changed.