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psr-540

  1. M

    Connecting Yamaha PSR-540 keyboard to iMac for Garageband use

    The Yamaha-keyboard/synth is connected to the computer (iMac 27", middle of 2011, El Capitan) via USB (from the keyboard it's connected with two big cables, "in" and "out"), but won't work. Garageband says that a MIDI-device is found, but the keyboard can't be played on any tracks. Does anyone...