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mac - Used Audio Midi Set Up to use two audio outputs at once but now am unable to control the master volume of my MacBook Pro? - Ask Different
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Amazon.com: FORE MIDI to USB Interface MIDI Adapter with Input&Output Connecting with Keyboard/Synthesizer for Editing&Recording Track work with Windows/Mac OS for Studio USB 2.0 Color Red - 6.5Ft : Musical Instruments
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CableCreation Câble d'imprimante USB B vers USB C 6,6 FT/2 m - Câble d'imprimante USB 2.0 B vers USB C - Pour MacBook Pro/Air, câble MIDI USB C pour Yamaha Casio Digital
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