# Trouble with mapping 2 keys for 1 button

**URL:** <https://forum.bome.com/t/trouble-with-mapping-2-keys-for-1-button/7746>\
**Category:** Bome Products\
**Tags:** midi-translator\
**Created:** [February 4, 2026, 3:59am UTC](https://forum.bome.com/t/trouble-with-mapping-2-keys-for-1-button/7746 "2026-02-04T03:59:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![housestay8](https://forum.bome.com/letter_avatar_proxy/v4/letter/h/3ab097/32.png) [@housestay8](https://forum.bome.com/u/housestay8)\
**Post date:** [February 4, 2026, 3:59am UTC](https://forum.bome.com/t/trouble-with-mapping-2-keys-for-1-button/7746/1 "2026-02-04T03:59:17Z")

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Kindly ask for an assistance  
I was playing an online piano for an audience. The piano only has three octaves, but my MIDI controller has five (Octaves 2 through 6). I decided to map Octaves 2 and 3 to the same keys, and do the same for Octaves 5 and 6.

I set up Octaves 3 through 5 first, and they worked perfectly. However, when I went back to map Octaves 2 and 6, I ran into trouble. The notes don’t trigger any sound until I lift my finger off the keys. I have no idea why this is happening the 2nd/3rd Octaves are Z-M, and A-G. The 5th/6th Octaves are 1-7, and F1-F5

This is my file.  
[Classic Piano.bmtp](https://forum.bome.com/uploads/short-url/9AlYMj5lBYs9j7Fx69tIiNd4Pq8.bmtp) (13.0 KB)

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**Author:** ![SteveC](https://forum.bome.com/user_avatar/forum.bome.com/stevec/32/8250_2.png) [@SteveC](https://forum.bome.com/u/SteveC)\
**Post date:** [February 4, 2026, 4:23am UTC](https://forum.bome.com/t/trouble-with-mapping-2-keys-for-1-button/7746/2 "2026-02-04T04:23:55Z")

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Any input that starts with 90 needs to have a key down action (note-on) and anything that starts with 80 needs to have a key up action (note-off). Translators 88 and on are backwards.

Steve Caldwell  
Bome Customer Care

* * *
_Also available for paid consulting services: bome@sniz.biz_

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**Author:** ![housestay8](https://forum.bome.com/letter_avatar_proxy/v4/letter/h/3ab097/32.png) [@housestay8](https://forum.bome.com/u/housestay8)\
**Post date:** [February 4, 2026, 1:27pm UTC](https://forum.bome.com/t/trouble-with-mapping-2-keys-for-1-button/7746/3 "2026-02-04T13:27:51Z")

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Thank you so much!