Toontrack EZkeys MIDI Pack - 6-pack You MUST have EZkeys software registered and authorized in your Toontrack account in order to use these EZkeys MIDI Packs. Here's your chance to buy 6 EZkeys MIDI Packs for EZkeys at a special bundled deal price! You'll be able to select 6 EZkeys MIDI Packs to register and download from within your Toontrack.com user account.