Yamaha DX21 Editor and Librarian

Patch Base has the best Yamaha DX21 editor and librarian available for Mac and iPad. Edit any parameter, organize patches, create random patches, and more.

FM Voice Editor

Patch Base makes FM easy to work with by showing you the layout of the currently selected algorithm and the envelopes and settings of each operator. You can finally visualize what's going on inside of the DX21, and once you do, it's not that complicated. Everything is shown on a single screen, including the Pitch Envelope, LFO, and external control settings.

Bank Editor

Patch Base's Bank Editor let you change and organize the saved sounds on your Yamaha DX21. You can easily save a bank to a file for back up and storage, and import entire new banks in seconds.

Patch Librarian

• Save your patches and banks as files on your iPad or Mac: Patch Base saves files as sysex that can be sent to your synth by Patch Base or any general-purpose sysex transfer app.
• Organize your sounds: Create folders to organize your patches and banks.
• iCloud integration: Optionally use iCloud to make your patch files accessible on any iCloud-connected device, and to automatically sync files between Patch Base on Mac and iPad.
• Import sysex files: Import existing patch and bank sysex files to Patch Base. On Mac, simply drop your files into the Patch Base browser. On iPad, easily import using iCloud or the Files app.