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Description
From the marketplace listing
A real grand piano you can play right in the chat.
Ask for any chord (C, Am7, Bbmaj7, F/A and more) or scale (major, minor, pentatonic, blues and the modes) and HitJam lights up the right keys, spelled the way a musician would write them. Press Play to hear it, tap the keys, or play along with your computer keyboard: every key shows the letter that plays it.
Learning a song? HitJam teaches public-domain classics note by note: the next key glows and waits for you, with right hand, left hand and both hands to work up through.
The sound is a recorded concert grand, played on your own device. No account, no ads, and nothing you play is sent anywhere. Want the full instrument, other sounds or your MIDI keyboard? Open hitjam.io.
Piano samples: Salamander Grand Piano V3 by Alexander Holm, licensed CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/).
Language: English · Automatically detected from descriptions.
From the developer’s listing and package; capabilities are not independently tested. Package observed Nov 3, 2026.
Declared capabilities
Interactive piano
Chords and scales
Song lessons
Declared limitations
Copyrighted song: the plugin only teaches its public-domain songs, so ChatGPT says this song is not available and offers one of them (or explains the chords in text). No copyrighted melody is shown.
Unreadable chord symbol: show_piano_chord returns an error explaining the symbol can't be read and suggesting standard symbols (C, Am, G7, Fmaj7, Dm7b5, C/G). No piano with wrong keys is shown.
Unrelated request: the plugin is not called.
Review scenarios; not an exhaustive list.
Cost & access
Pricing and account requirements have not been established from the available package declarations. Unknown pricing does not mean free access.