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Editorial Team
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Asked: 2026-06-12T02:41:15+00:00

I am building a Java application that programatically generates a MIDI Sequence that is

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I am building a Java application that programatically generates a MIDI Sequence that is then sent over the LoopBe Internal Midi Port so that I can use Ableton Live instruments for better sound playback quality.

Please correct me if I am wrong. What I need is to generate a Sequence, that will contain Tracks that will contains MidiEvents, that will contain MIDI messages with time information. That I think I got down.

The real problem is how to send it over the LoopBe MIDI Port. For that I supposedly need a Sequencer, but I don’t know how I can get one rather than the default one, and I don’t want that.

I guess a workaround would be to write the Sequence to a .mid file and then programatically play it back on the LoopBe Port.

So my question is: How can I obtain a non-default Sequencer?

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1 Answer

  1. Editorial Team

    You need method MidiSystem.getSequencer(boolean). When you call it with false parameter, it gives you unconnected sequencer.

    Get Receiver instance from your target MIDI device and set it to sequencer with seq.getTransmitter().setReceiver(rec) call.

    Example snippet:

    MIDIDevice device = ... // obtain the MIDIDevice instance
Sequencer seq = MidiSystem.getSequencer(false);
Receiver rec = device.getReceiver();
seq.getTransmitter().setReceiver(rec)

    For examples on Sequencer use, see tutorial on http://docs.oracle.com/javase/tutorial/sound/MIDI-seq-methods.html

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