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&lt;/script&gt;</html><thumbnail_url>https://polyend-website.fra1.digitaloceanspaces.com/wp-content/uploads/2026/05/28153803/Geiger_Tuner.jpg</thumbnail_url><thumbnail_width>890</thumbnail_width><thumbnail_height>515</thumbnail_height><description>A chromatic tuner with visual and audio pitch feedback, plus an optional chord mode for ear training and harmonic reference. Tuner mode uses responsive beeps and color feedback to guide pitch adjustment in real time, while Chord mode generates a swelling major triad that locks in as you approach perfect tuning. Designed for fast stage tuning, silent practice, and intonation training with guitars, synths, and other monophonic instruments. More details on backstage.</description></oembed>
