Burtle

Open it in Anvil Studio (freemium DAW). Select the drum track, set its channel to 10, and view its piano keys via "View→Piano Roll Editor", and it'll show you all keys (pitch and length) this track uses. You may also click on the piano keys on the left of the window to listen to the timbre of every pitch.

Did you read my post via the link provided? I have listed the pitches for a FR drum set in there. These pitches apply to the drum kit with offset 0x848A0D0 (FR) or 0x8676148 (EM).

Most of the pitches in a GBA drum set correspond to their counterparts in GM 1, so this webpage might help you:
https://www.midi.org/specifications-old/item/gm-level-1-sound-set

To properly use drums, you must have in mind which pitches the drum sounds are located. If your drum track contains a pitch that is not included in the drum kit, a corresponding pitch of square wave will be played instead.

I have made a compilation of drum sounds (FR only) in this post for reference:
https://www.pokecommunity.com/showpost.php?p=10041429&postcount=9