# Send MIDI to external hardware also for Audio Units (AU) not for VST only

**URL:** <https://forum.scalermusic.com/t/send-midi-to-external-hardware-also-for-audio-units-au-not-for-vst-only/12930>\
**Category:** Scaler 2 Feature Requests\
**Created:** [January 31, 2023, 10:36am UTC](https://forum.scalermusic.com/t/send-midi-to-external-hardware-also-for-audio-units-au-not-for-vst-only/12930 "2023-01-31T10:36:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tsk](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/tsk/32/8436_2.png) [@tsk](https://forum.scalermusic.com/u/tsk)\
**Post date:** [January 31, 2023, 10:36am UTC](https://forum.scalermusic.com/t/send-midi-to-external-hardware-also-for-audio-units-au-not-for-vst-only/12930/1 "2023-01-31T10:36:07Z")

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Hello,  
as a UAD Luna DAW user, I’m limited to AU only as it doesn’t take VST at all.  
It would be great to also have the ability to send midi notes from scalar directly to my external hardware gear.

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<div class="post-metadata">

**Author:** ![jamieh](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/jamieh/32/1139_2.png) [@jamieh](https://forum.scalermusic.com/u/jamieh)\
**Post date:** [January 31, 2023, 4:02pm UTC](https://forum.scalermusic.com/t/send-midi-to-external-hardware-also-for-audio-units-au-not-for-vst-only/12930/2 "2023-01-31T16:02:13Z")

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You can use something like Blue Cat Patchwork to host VST inside Luna.  
You should also speak to UAD about adding VST for this sort of thing. There are some other hosts available for this as well that work.  
Apple is working on specs for AU3 so talking to them would help move forward on this issue.