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GhostNote
From ghost idea to GhostNote
GhostNote is a browser-based, local-first music theory and practice workspace for musicians who want to understand harmony, not just memorize it. It brings together interactive tools for playing, analyzing, and practicing music in one place: virtual piano with Web MIDI support, chord progression tools, voice-leading analysis, and a structured practice academy. Runs fully in the browser and evolves through real user feedback into a complete music learning environment.
Top comment
Hey everyone 👋 I’m Santiago, the developer behind GhostNote. GhostNote started as a personal tool to learn and practice music theory in a more interactive way, and it slowly grew into a browser-based workspace for exploring harmony. It includes a virtual piano with Web MIDI support, chord progression tools, voice-leading analysis, and an interactive practice academy. Everything runs locally in the browser, and I’m building it in public based on real user feedback. Would love to hear thoughts from musicians, producers, and learners — especially what feels useful or missing.
About GhostNote on Product Hunt
“From ghost idea to GhostNote”
GhostNote was submitted on Product Hunt and earned 0 upvotes and 3 comments, placing #93 on the daily leaderboard. GhostNote is a browser-based, local-first music theory and practice workspace for musicians who want to understand harmony, not just memorize it. It brings together interactive tools for playing, analyzing, and practicing music in one place: virtual piano with Web MIDI support, chord progression tools, voice-leading analysis, and a structured practice academy. Runs fully in the browser and evolves through real user feedback into a complete music learning environment.
On the analytics side, GhostNote competes within Web App, Music and Education — topics that collectively have 255k followers on Product Hunt. The dashboard above tracks how GhostNote performed against the three products that launched closest to it on the same day.
Who hunted GhostNote?
GhostNote was hunted by Santiago. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of GhostNote including community comment highlights and product details, visit the product overview.

