Casio Launches Feel Sync Keyboard for Musicians
The Casiotone CT-FS1 adjusts played notes to match a song's harmony in real time, arriving in Europe this month at €399.
Updated on Nov. 3, 2026 in R&B
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Casio has launched the Casiotone CT-FS1, a 61-key portable keyboard priced at $399.99 in the US, built on the CT-S1 and paired with the Feel Sync app. The keyboard arrives across Europe at €399 this month, and the Feel Sync app goes live there on November 11, 2026.
Why it matters
Feel Sync lets players of varying skill sound harmonically aligned with a song, lowering the barrier to playing along with recorded music. For the R&B and broader music-consumer audience, it offers a practical tool for practicing and performing over tracks without needing music theory.
The CT-FS1 is priced at $399.99 in the US, $140 more than the standard CT-S1 at $259.99 without the WU-BT10 adapter. The Feel Sync catalogue includes 70 songs, though the stub does not indicate how it will grow.
The players
Casio
Casio is a Japanese electronics manufacturer best known for its calculators, watches and Casiotone line of electronic keyboards.
The details
The CT-FS1 is based on the CT-S1 and shares its core specifications, including 61 keys and a 64-note AiX Sound Source with 61 built-in tones spanning pianos, organs, strings and synths. Players pair the bundled WU-BT10 adapter with the Feel Sync app over Bluetooth, and the app analyzes each track's chords, melody and rhythm so the keyboard's triggered notes shift to fit the music.
Timeline
2021: Casio introduced the CT-S1 keyboard on which the CT-FS1 is based.
November 2026: The CT-FS1 arrives across Europe at €399.
November 11, 2026: The Feel Sync app goes live in Europe.
Market Landscape
The CT-FS1 extends Casio's CT-S1 line, introduced in 2021, by adding the Feel Sync harmony-matching feature to the same core hardware. It positions Casio's portable keyboards against rival instruments by bundling an interactive play-along function at a premium over the base model.
Buyers can purchase the CT-FS1 for $399.99 in the US or €399 in Europe, and the Feel Sync app is available for iOS and Android. Users can import their own MP3, WAV or AIFF files, but streaming services are not supported.
The takeaway
Players who want to play along with songs without learning chord theory can use the Feel Sync feature, but should note that imported files must be local MP3, WAV or AIFF rather than streamed music.
What happens next
The Feel Sync app is scheduled to go live in Europe on November 11, 2026, and will reach Serbia, Moldova, North Macedonia, Albania, Kosovo, Bosnia and Herzegovina, and Ukraine at a later date.
Further reading
For more on how music technology is changing how artists and listeners create sound, see R&B.
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