F4 is a low wood block sound in GM standard drum kit:

https://upload.wikimedia.org/wikipedia/commons/c/c2/GM_Standard_Drum_Map_on_the_keyboard.svg

It works here. You say that you have both a treble and bass clef? I just have two drum clefs with the names of each drum on its corresponding staff placement.

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I think my wife has started to show the first signs of dementia.
She said she can't remember what she ever saw in me!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware