Remove demo restrictions to practice any MIDI song you find or create.

The Synthesia AI video platform uses a subscription-based "seat" or account-based licensing system rather than a traditional static key.

Using unauthorized keys for the AI Video platform will likely lead to an immediate account ban, as access is verified on their servers.

You can purchase a Synthesia unlock key directly from the official website or from authorized resellers. Make sure to only buy from trusted sources to ensure the key is genuine and valid.

: Users activate by entering the key in the 'Settings' or 'Activate' section of the app. 2. Synthesia AI Video Generation Platform

: You gain full access to advanced learning modes like "Melody Practice," where the software waits for you to hit the correct note before moving forward, and "Rhythm Practice," which focuses on timing.