Opening Metro To open Metro: Double-click the Metro application icon located in the Metro folder on yourhard drive. If you are running Metro for the first time, you must have theproduct CD in your CD-ROM drive. Click OK. Once Metro is open, the next step is to indicate your MIDI setup and recording preferences. For OS 9 we recommend that you install OMS before setting up MIDI. See Also: MIDI Setup (OS X) MIDI Setup Without OMS OMS MIDI Setup