# MIDI Effects

A MIDI effect processes MIDI messages. The following MIDI effects are available:

1. Arpeggiator.
2. Multi Effect.
3. Poly Modulator.
4. Velocity Curve.
5. AU MIDI Effect Plugins, AU plugins that can process MIDI.
6. CLAP MIDI Effect Plugins, CLAP plugins that can process MIDI.
7. VST MIDI Effect Plugins, VST plugins that can process MIDI.

MIDI Effect Slot
MIDI Effect Selector

MIDI effects are used in MIDI Effect Slots. To add a MIDI Effect Slot to a MIDI track, click the Instrument Slot's down arrow and choose the Add MIDI Effect slot option. Likewise, to remove a MIDI Effect Slot, click its down arrow and choose the Remove MIDI Effect slot option. A track can have only one MIDI Effect Slot. You can use a Multi Effect if you need more slots.

The data that appears in the track editor is sent to the MIDI effect. The MIDI effect processes the data and sends it to the MIDI instrument. A recording track records the data coming from your MIDI keyboard (i.e., the MIDI effect is not part of the recording).

A MIDI effect's options menu includes an Apply in editor option. This applies the effect in the track editor, and enables the effect's Bypass button.

If a MIDI track has multiple streams the MIDI effect will be applied to the first stream only.